SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 11-K

                                  ANNUAL REPORT

                        Pursuant to Section 15(d) of the
                         Securities Exchange Act of 1934

                            [GRAPHIC OMITTED - LOGO]

                               COMCAST CORPORATION


(Mark One):

 X    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF
---   1934.
      For the fiscal year ended December 31, 2001.

                                       OR

      TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT
---   OF 1934.
      For the transition period from _________ to ________

Commission file number 0-6983
                       ------

      A. Full title of the plan and the address of the plan, if different from
that of the issuer named below:

      THE COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN

      B. Name of issuer of the securities held pursuant to the plan and the
address of its principal executive office:

      Comcast Corporation
      1500 Market Street
      Philadelphia, PA 19102-2148








                         COMCAST CORPORATION RETIREMENT-
                         INVESTMENT PLAN

                         Financial Statements as of
                         December 31, 2001 and 2000 and for each of the
                         Three Years in the Period Ended December 31, 2001;
                         Supplemental Schedule as of December 31, 2001;
                         and Independent Auditors' Report






COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

TABLE OF CONTENTS
--------------------------------------------------------------------------------



                                                                          Page
                                                                          ----

INDEPENDENT AUDITORS' REPORT                                                 1

FINANCIAL STATEMENTS:

     Statement of Net Assets Available for Benefits as of
         December 31, 2001 and 2000                                          2

     Statement of Changes in Net Assets Available for Benefits
         for the Years Ended December 31, 2001, 2000 and 1999                3

     Notes to Financial Statements                                        4-11

SUPPLEMENTAL SCHEDULE:

     Schedule H - Line 4i - Schedule of Assets Held for
         Investment Purposes as of December 31, 2001                        12

INDEPENDENT AUDITORS' CONSENT                                               13

SIGNATURE                                                                   14



INDEPENDENT AUDITORS' REPORT

Plan Administrator
Comcast Corporation Retirement-Investment Plan
Philadelphia, Pennsylvania

We have audited the accompanying statement of net assets available for benefits
of the Comcast Corporation Retirement-Investment Plan (the "Plan") as of
December 31, 2001 and 2000, and the related statement of changes in net assets
available for benefits for each of the three years in the period ended December
31, 2001. These financial statements are the responsibility of the Plan's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States of America. Those standards require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for benefits of the Plan as of
December 31, 2001 and 2000, and the related changes in net assets available for
benefits for each of the three years in the period ended December 31, 2001 in
conformity with accounting principles generally accepted in the United States of
America.

Our audits were performed for the purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental schedule of Assets Held
for Investment Purposes (Schedule H - Line 4i) is presented for the purpose of
additional analysis and is not a required part of the basic financial
statements, but is supplementary information required by the Department of
Labor's Rules and Regulations for Reporting and Disclosure under the Employee
Retirement Income Security Act of 1974. The supplemental schedule is the
responsibility of the Plan's management. Such supplemental schedule has been
subjected to the auditing procedures applied in our audit of the basic financial
statements and, in our opinion, is fairly stated in all material respects when
considered in relation to the basic financial statements taken as a whole.




/s/ DELOITTE & TOUCHE LLP
Philadelphia, Pennsylvania
June 24, 2002



                                       -1-




COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
DECEMBER 31, 2001 AND 2000
--------------------------------------------------------------------------------






                                                           December 31,
                                                    2001                  2000
                                               --------------        ---------------
                                                                  
ASSETS:
   Cash                                          $      1,171           $    777,957
   Investments, at fair or contract value         325,997,666            336,926,203
   Loans receivable from participants              10,308,475              9,620,740
                                               --------------        ---------------

NET ASSETS AVAILABLE FOR BENEFITS                $336,307,312           $347,324,900
                                               ==============        ===============




See notes to financial statements.


                                       -2-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
YEARS ENDED DECEMBER 31, 2001, 2000 AND 1999
--------------------------------------------------------------------------------





                                                                         Years Ended December 31,
                                                                 2001              2000             1999
                                                            ---------------  ----------------  ---------------
                                                                                        
(DEDUCTIONS) ADDITIONS TO NET ASSETS
  ATTRIBUTED TO:
   Investment income:
     Net realized and unrealized (depreciation) appreciation
       in fair value of investments                           $ (41,201,054)    $ (52,351,113)   $  84,771,033
     Interest and dividends                                       7,045,383        14,403,290        8,232,242
                                                            ---------------  ----------------  ---------------
                                                                (34,155,671)      (37,947,823)      93,003,275
                                                            ---------------  ----------------  ---------------
   Contributions:
     Employee                                                    43,818,758        26,802,014       18,519,160
     Employer                                                    16,126,286        10,145,463        7,701,672
     Rollovers from merged plans (Note 2)                                          17,298,499       54,633,073
                                                            ---------------  ----------------  ---------------
                                                                 59,945,044        54,245,976       80,853,905
                                                            ---------------  ----------------  ---------------

                                                                 25,789,373        16,298,153      173,857,180
                                                            ---------------  ----------------  ---------------

DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO:
   Benefits paid to participants or beneficiaries                36,806,961        29,427,065       24,659,096
                                                            ---------------  ----------------  ---------------
                                                                 36,806,961        29,427,065       24,659,096
                                                            ---------------  ----------------  ---------------

Net (decrease) increase                                         (11,017,588)      (13,128,912)     149,198,084

NET ASSETS AVAILABLE FOR BENEFITS:
   Beginning of year                                            347,324,900       360,453,812      211,255,728
                                                            ---------------  ----------------  ---------------
   End of year                                                $ 336,307,312     $ 347,324,900    $ 360,453,812
                                                            ===============  ================  ===============



See notes to financial statements.


                                       -3-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999
--------------------------------------------------------------------------------


1.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

      The financial statements of the Comcast Corporation  Retirement-Investment
      Plan (the "Plan") are  presented  using the accrual  basis of  accounting.
      Investments in mutual funds and the Comcast Stock Fund are carried at fair
      value.  Fair value is  determined  by the last sale or closing price as of
      the last trading day of the Plan year for investments in securities traded
      on a  securities  exchange  or  the  Nasdaq  National  Market.  Investment
      contracts,  which are included in the Comcast Stable Value Fund, are fully
      benefit-responsive  and are  carried at  contract  value.  Contract  value
      represents  contributions  made,  plus  interest at the contract  rate and
      transfers,  less  distributions.  Loans  receivable from  participants are
      valued at cost which approximates fair value. Net unrealized  appreciation
      or depreciation in the financial statements reflects changes in fair value
      of  investments  held at year end,  while net  realized  gains and  losses
      associated  with the  disposition  of  investments  are recorded as of the
      trade date and  calculated  based on fair value as of such date. All costs
      associated  with  administering  the Plan are paid or  incurred by Comcast
      Corporation ("Comcast," the "Company" or the "Plan Administrator").

      The  preparation  of financial  statements in conformity  with  accounting
      principles  generally  accepted in the United  States of America  requires
      management  to make  estimates  and  assumptions  that  affect the amounts
      reported  in the  financial  statements  and  accompanying  notes.  Actual
      results could differ from those estimates.

2.    PLAN DESCRIPTION

      General
      -------

      The following  description of the Plan provides only general  information.
      Plan  participants  should  refer  to the  Plan  document  and  applicable
      amendments  for a more  complete  description  of the  Plan's  provisions.
      Copies of these documents are available from the Plan Administrator.

      The Plan is a defined  contribution  plan qualified under Internal Revenue
      Code (the "Code")  Sections 401(k),  401(a) and 401(m).  The original Plan
      has been amended and  restated to reflect  mergers of other plans with and
      into the Plan and to make certain other  technical,  compliance and design
      changes.  The Plan is subject to the provisions of the Employee Retirement
      Income Security Act of 1974 ("ERISA").

      During 1999, the Plan was amended to allow an employee to become  eligible
      for  participation  in the Plan upon completion of 91 days of service,  as
      defined  in the  Plan,  and to  participate  in  allocations  of  employer
      matching  contributions  under the Plan  after  completion  of one year of
      service.  Prior  to July 1,  1999,  an  employee  was  eligible  for  both
      participation and employer matching  contributions  upon completion of one
      year of service.

      Each eligible employee may direct the Company to make contributions to the
      Plan of any whole  percentage  from 1% through 17% of their  compensation,
      subject to certain  limits  imposed by the Code.  For the two years  ended
      December  31,  2000,  the  Company  matched  100%  of  the   participant's
      contribution up to 1% of the  participant's  compensation for such payroll
      period,  and 50% of the participant's  contribution in excess of 1% of the
      participant's  compensation for such payroll period, up to a maximum total
      matching contribution of 3.5% of the participant's compensation.

      Effective  January 1, 2001,  the Plan was amended to increase the employer
      matching  contribution  rate  so  that  the  Company  matches  100% of the
      participant's  contribution up to 3% of the participant's compensation for
      such payroll period,  and 50% of the participant's  contribution in excess
      of 3% of the  participant's  compensation for such payroll period, up to a
      maximum  total  matching   contribution  of  4.5%  of  the   participant's
      compensation.

      Each  participant has at all times a 100%  nonforfeitable  interest in the
      participant's    contributions   and   earnings    attributable   thereto.
      Contributions  by the Company and  earnings  thereon  during the two years
      ended December 31, 2000 vested according to the following schedule:

                                       -4-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------


              Years of Service                      Vested Percentage
              ----------------                      -----------------

              1 year but less than 2 years                 20%
              2 years but less than 3 years                40
              3 years but less than 4 years                60
              4 years but less than 5 years                80
              5 years or more                             100

      Effective  January 1, 2001,  the Plan was amended to provide  that Company
      matching  contributions  allocated with respect to  participation  in plan
      years  beginning  after  December 31, 2000 shall be fully and  immediately
      vested.  The  applicable  vesting  schedule  under  the Plan  for  Company
      matching  contributions  allocated with respect to  participation  in plan
      years  ending  before  January  1,  2001  was not  affected  by this  Plan
      amendment.

      For employees hired on or before January 15, 1999, the Company contributed
      cash to purchase 10 shares of the Company's  Class A Special  Common Stock
      for the account of each newly eligible  participant.  These  contributions
      were  recorded at the market value of the shares at the date  contributed.
      Effective  for  employees  hired  after  January  15,  1999,  the  Company
      discontinued  such   contributions  to  the  accounts  of  newly  eligible
      participants.

      Each  participant  has the right, in accordance with the provisions of the
      Plan, to direct the investment by the trustee of the Plan (the  "Trustee")
      of all amounts allocated to the separate accounts of the participant under
      the Plan among any one or more of the  investment  fund  options (see Note
      3). The Trustee pays benefits and expenses  upon the written  direction of
      the Plan Administrator.

      Amounts  contributed by the Company which are forfeited by participants as
      a result of the  participants'  separation  from service prior to becoming
      100% vested may be used to reduce the  Company's  required  contributions.
      Pending application of the forfeitures, the Company may direct the Trustee
      to hold the forfeitures in cash or under investment in a suspense account.
      If the Plan should  terminate  with any  forfeitures  not applied  against
      Company contributions, they will be allocated to then current participants
      in the proportion that each participant's  compensation for that Plan year
      bears to the compensation for all such participants for the Plan year.

      Any  participant  who has a separation  from service for any reason except
      death,  disability  or  attainment  of age 65 shall be entitled to receive
      his/her vested account  balance.  Upon death,  disability or attainment of
      age 65, a  participant's  account  becomes  fully  vested  in all  Company
      contributions regardless of the participant's years of service. Generally,
      distribution  will start no later than 60 days after the close of the Plan
      year in which the participant's separation from service occurs, subject to
      certain  deferral  rights under the Plan.  The  distribution  alternatives
      permitted are a lump sum payment,  an annuity,  installments over a period
      of time,  any  combination  of the  foregoing  or a rollover  into another
      qualified plan.

      Although  it has not  expressed  any intent to do so, the  Company has the
      right under the Plan to discontinue its  contributions  at any time and to
      terminate  the Plan subject to the  provisions  of ERISA.  In the event of
      Plan  termination,  each  participant's  account balance will become fully
      vested.

      Rollover of Assets from Merged Plans (see Note 9)
      -------------------------------------------------

      Effective April 1, 1999,  pursuant to the Company's  acquisition of assets
      associated  with the  operation of certain  cable  systems of Marcus Cable
      Operating  Company,  L.P. and Marcus Cable of Delaware and Maryland,  L.P.
      ("Marcus"),  the  Compensation  Committee of the Board of Directors of the
      Company resolved to merge the Marcus Cable Operating Company,  L.P. 401(k)
      Plan (the "Marcus  Plan") with and into the Plan.  Effective on the merger
      date,  the assets and  liabilities  of the Marcus Plan  became  assets and
      liabilities  of the Plan.  The  transfer is  included in the  accompanying
      statement of changes in net assets  available  for benefits as  "Rollovers
      from merged plans" and approximated $213,000.


                                       -5-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------


      Effective  October 1, 1999,  pursuant to the  Company's  acquisition  of a
      controlling interest in Jones Intercable, Inc. ("Jones") on April 7, 1999,
      the  Compensation  Committee  of the  Board of  Directors  of the  Company
      resolved   to   merge   the   Jones   Intercable,   Inc.   Et  Al   Profit
      Sharing/Retirement  Plan and the  Jones  Intercable,  Inc.  Et Al  Defined
      Contribution  Transfer  Plan (the "Jones  Plans")  with and into the Plan.
      Effective  on the merger  date,  the assets and  liabilities  of the Jones
      Plans became assets and  liabilities of the Plan. The transfer is included
      in the  accompanying  statement  of changes in net  assets  available  for
      benefits as "Rollovers from merged plans" and approximated $53,041,000.

      Effective  November 1, 1999,  pursuant  to the  Company's  acquisition  of
      Greater  Philadelphia  Cablevision,  Inc. from Greater  Media,  Inc.,  the
      Compensation  Committee of the Board of Directors of the Company  resolved
      to merge the Greater  Media,  Inc.  401(k) Plan (the "Greater Media Plan")
      with and into the Plan.  Effective  on the  merger  date,  the  assets and
      liabilities of the Greater Media Plan became assets and liabilities of the
      Plan. The transfer is included in the accompanying statement of changes in
      net assets  available  for benefits as  "Rollovers  from merged plans" and
      approximated $1,379,000.

      Effective May 1, 2000, pursuant to the Company's  acquisition of assets of
      Garden State Cablevision, L.P., the Compensation Committee of the Board of
      Directors of the Company  resolved to merge the Garden  State  Cablevision
      Retirement-Investment  Plan  (the  "GSCTV  Plan")  with and into the Plan.
      Effective on the merger date, the assets and liabilities of the GSCTV Plan
      became assets and liabilities of the Plan. The transfer is included in the
      accompanying  statement of changes in net assets available for benefits as
      "Rollovers from merged plans" and approximated $11,571,000.

      Effective August 1, 2000, pursuant to the Company's  acquisition of assets
      of Prime  Communications--Potomac  LLC, the Compensation  Committee of the
      Board  of   Directors   of  the  Company   resolved  to  merge  the  Prime
      Communications--Potomac LLC 401(k) Retirement & Savings Plan and the Prime
      Cable 401(k)  Savings and Security Plan (the "Prime  Plans") with and into
      the Plan.  Effective on the merger date, the assets and liabilities of the
      Prime Plans became  assets and  liabilities  of the Plan.  The transfer is
      included in the accompanying  statement of changes in net assets available
      for benefits as "Rollovers from merged plans" and approximated $5,727,000.

      Removal and Appointment of Trustee
      ----------------------------------

      Effective  April 1, 1999,  State Street Bank and Trust Company was removed
      as Trustee of the trust  established  under the Plan and Putnam  Fiduciary
      Trust Company, a Massachusetts trust company, was appointed Trustee of the
      trust established  under the Plan.  Concurrent with the change in Trustee,
      several  mutual funds  previously  provided as investment  funds under the
      Plan were eliminated and several new mutual funds with similar  investment
      strategies were added.

3.    INVESTMENT OPTIONS (see Note 9)

      Upon   enrollment  in  the  Plan,  a  participant   may  direct   employee
      contributions   and  employer   contributions  (if  applicable)  in  whole
      percentage increments among one or more of the funds listed below. A brief
      summary  of each fund,  as  described  in each  fund's  prospectus  (where
      applicable), is as follows:

      a. Dodge  and  Cox  Balanced  Fund  -  The  Fund  seeks  regular   income,
         conservation  of principal and an opportunity  for long-term  growth of
         principal and income.  The Fund invests in a  diversified  portfolio of
         common  stocks,  preferred  stocks  and  fixed  income  securities.  In
         selecting  equity  investments,  the Fund invests in companies that, in
         the Fund's opinion,  appear to be temporarily  undervalued by the stock
         market and have a favorable  outlook  for  long-term  growth.  The Fund
         focuses  on  the  underlying   financial  condition  and  prospects  of
         individual  companies,   including  future  earnings,   cash  flow  and
         dividends.  Companies  are also  selected with an emphasis on financial
         strength and sound economic condition. The returns on these investments
         vary as the stock and bond markets  fluctuate and there is no guarantee
         of principal or rate of return.


                                       -6-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------


      b. Putnam  Investors Fund - The Fund seeks long-term growth of capital and
         any  increased  income that results from this growth.  The Fund invests
         mainly in common  stocks of United  States  companies,  with a focus on
         growth  stocks.  Growth  stocks are issued by  companies  that the Fund
         believes are  fast-growing  and whose  earnings  the Fund  believes are
         likely  to  increase  over  time.  Growth  in  earnings  may lead to an
         increase in the price of the stock.  The Fund  invests  mainly in large
         companies. The return of the Fund varies as the stock markets fluctuate
         and there is no guarantee of principal or rate of return.

      c. Putnam  New  Opportunities  Fund - The  Fund  seeks  long-term  capital
         appreciation. The Fund invests mainly in common stocks of United States
         companies, with a focus on growth stocks in sectors of the economy that
         the Fund believes have high growth potential.  Growth stocks are issued
         by companies that the Fund believes are fast-growing and whose earnings
         the Fund believes are likely to increase over time.  Growth in earnings
         may lead to an increase in the price of the stock.  The growth  sectors
         emphasized  include  communications,   media/  entertainment,   medical
         technology/cost  containment,  industrial and  environmental  services,
         applied/advanced technology,  financial services, consumer products and
         services and business services. The Fund may invest in companies of any
         size. The return on the Fund varies as the stock markets  fluctuate and
         there is no guarantee of principal or rate of return.

      d. Putnam International Growth Fund - The Fund seeks capital appreciation.
         The Fund  invests  mainly in common  stocks of  companies  outside  the
         United  States.  The Fund first selects the countries and industries it
         believes are attractive, then looks for companies that it believes have
         favorable  investment  potential.  For  example,  the Fund may purchase
         stocks of  companies  with stock prices that reflect a value lower than
         that  which the Fund  places on the  company.  The Fund also  considers
         other factors it believes will cause the stock price to rise.  The Fund
         invests mainly in mid-sized and large companies, although it can invest
         in companies of any size.  Although the Fund emphasizes  investments in
         developed  countries,  it may  also  invest  in  companies  located  in
         developing  (also known as  emerging)  markets.  The return of the Fund
         varies as the stock  markets  fluctuate  and there is no  guarantee  of
         principal or rate of return.

      e. Vanguard  Windsor II Fund - The Fund seeks to provide  long-term growth
         of capital.  As a secondary  objective,  the Fund seeks to provide some
         dividend income.  The Fund invests  primarily in large and medium-sized
         companies  whose stocks are  considered by the Fund to be  undervalued.
         Such stocks,  called "value" stocks,  often are out of favor in periods
         when investors are drawn to companies with strong prospects for growth.
         The  price  of  value  stocks,  therefore,  may  be  below  average  in
         comparison with such fundamental factors as earnings,  revenue and book
         value.  In  addition,  value  stocks  often  provide  an  above-average
         dividend yield.

      f. Putnam S&P 500 Index Fund - The Fund seeks to achieve a return,  before
         the assessment of any fees, that closely approximates the return of the
         Standard & Poor's 500  Composite  Stock  Price Index (the  "Index"),  a
         common  measure  of United  States  market  performance.  The Fund will
         invest  primarily in the securities that  constitute the Index,  either
         directly or through the  purchase  of shares of  collective  investment
         trusts having  investment  objectives  similar to that of the Fund. The
         Index  is a broad  market-weighted  composite  of 500  selected  common
         stocks, most of which are listed on the New York Stock Exchange. Except
         as set forth below, the Fund attempts to be fully invested at all times
         in the  stocks  that  compose  the Index  either  directly  or  through
         collective  investment trusts.  However, it is not anticipated that the
         Fund's portfolio will duplicate the Index exactly. To maintain adequate
         liquidity,  the  Fund may  invest  a small  portion  of its  assets  in
         high-quality  money market  instruments  and in money market funds that
         invest exclusively in high-quality money market instruments.  To manage
         transaction costs and minimize tracking errors between the Fund and the
         Index,  the Fund may  invest in  exchange-traded  stock  index  futures
         contracts.  To earn additional income, the Fund (or collective trust in
         which it invests) may lend securities to other  financial  institutions
         on a collateralized  basis. Any income will be net of fees.  Securities
         lending is subject to certain  risks.  The return of the Fund varies as
         the stock  markets  fluctuate and there is no guarantee of principal or
         rate of return.


                                       -7-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------


      g. Comcast  Corporation Stock Fund - The assets of the Comcast Corporation
         Stock Fund are invested in the Company's  Class A Special Common Stock.
         The Fund  purchases  the stock at  prevailing  rates in the open market
         and,  in the normal  course of  business,  sells such stock to meet the
         distribution requirements of the Plan. The value of the Fund fluctuates
         and there is no guarantee of principal or rate of return.

      h. Comcast Stable Value Fund - The Fund emphasizes  stability of principal
         while seeking to earn a competitive rate of return. The Fund invests in
         investment  contracts  issued by insurance  companies,  banks and other
         financial  institutions.  The Fund may also  invest in  security-backed
         investment   contracts  that  consist  of  one  or  more   fixed-income
         securities and a wrap contract issued by an insurance company,  bank or
         other  financial  institution.  The wrap contract  provides  book-value
         liquidity for benefit payments and offers enhanced diversification. The
         interest rates credited under security-backed  investment contracts may
         vary based on the performance of the specific securities and withdrawal
         experience.

      i. Jones  Intercable  Stock Fund - The Jones  Intercable  Stock Fund was a
         former   fund   of   the   Jones   Intercable,   Inc.   Et  Al   Profit
         Sharing/Retirement  Plan and became an investment fund of the Plan when
         the Jones  Plans were  merged  with and into the Plan (see Note 2). The
         assets of the Fund were  invested in Jones' Class A Common  Stock.  The
         Fund was frozen  effective on the merger date,  and no purchases of the
         Jones Class A Common Stock were  subsequently  made. The Fund sold such
         stock  in the  normal  course  of  business  to meet  the  distribution
         requirements  of the Plan. On March 2, 2000, the  shareholders of Jones
         approved a merger  pursuant  to which the Company  acquired  all of the
         remaining  shares of Jones not then owned by the Company.  As a result,
         Jones  was  merged  with  and  into  Comcast  JOIN  Holdings,  Inc.,  a
         wholly-owned  subsidiary of the Company,  on that date and Jones common
         stock  ceased to be  publicly-traded.  Each  former  Jones  stockholder
         received  1.4 shares of Comcast  Class A Special  Common Stock for each
         share of Jones common  stock.  Each share of Jones Class A Common Stock
         invested  in the Jones  Intercable  Stock Fund was  converted  into 1.4
         shares of the  Company's  Class A Special  Common Stock and invested in
         the Comcast Corporation Stock Fund.

      The  selection of  investments  from the options  listed above is the sole
      responsibility  of each  participant.  Each participant  assumes all risks
      connected with any decrease in the market value of any securities in these
      funds,  and such funds are the sole source of payments  under the Plan. If
      no  investment  direction  is made  by a  participant,  the  participant's
      account is invested in the Comcast  Stable Value Fund at the  direction of
      the Plan Administrator.


                                       -8-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------


4.    INVESTMENTS

      The Plan's investments,  including cash and participant loans, are held by
      a trust fund and are presented in the following  table.  Investments  that
      represent 5% or more of the Plan's net assets available for benefits as of
      December  31,  2001  and  2000  are  separately   identified   (number  of
      units/shares are rounded to the nearest whole unit or share).




                                                                    December 31, 2001
                                                       -------------------------------------------
                                                          Number of
                                                         Units/Shares                   Amount
                                                      ------------------            --------------
                                                                                
Mutual Funds (at fair value)
    Dodge and Cox Balanced Fund                             618,836  units            $ 40,484,257
    Putnam Investors Fund                                 3,512,396  units              40,954,541
    Putnam New Opportunities Fund                           428,894  units              17,996,395
    Putnam International Growth Fund                        722,638  units              14,416,635
    Vanguard Windsor II Fund                                639,266  units              16,358,805
    Putnam S&P 500 Index Fund                               750,368  units              20,897,741
                                                                                    --------------
                                                                                       151,108,374
                                                                                    --------------
Comcast Corporation Stock Fund (at fair value)
    Class A Special Common Stock                          2,994,708  shares            107,809,475
    Cash                                                                                     1,171
                                                                                    --------------
                                                                                       107,810,646
                                                                                    --------------

Comcast Stable Value Fund (at contract value)
    The Putnam Stable Value Fund                         52,183,465  units              52,183,465
    Other investment contracts                           14,896,352  units              14,896,352
                                                                                    --------------
                                                                                        67,079,817
                                                                                    --------------

Participant Loan Fund (at cost)
    (interest rates from 6.00% to 11.00%;
    maturities from 2002 to 2010)                                                       10,308,475
                                                                                    --------------
                                                                                      $336,307,312
                                                                                    ==============




                                       -9-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Continued)
--------------------------------------------------------------------------------




                                                                    December 31, 2000
                                                       -------------------------------------------
                                                          Number of
                                                         Units/Shares                   Amount
                                                      ------------------            --------------
                                                                                
Mutual Funds (at fair value)
    Dodge and Cox Balanced Fund                             481,899  units            $ 30,562,037
    Putnam Investors Fund                                 3,521,321  units              54,474,835
    Putnam New Opportunities Fund                           314,337  units              18,816,193
    Putnam International Growth Fund                        648,560  units              16,084,287
    Vanguard Windsor II Fund                                450,509  units              12,253,847
    Putnam S&P 500 Index Fund                               612,289  units              19,397,329
                                                                                    --------------
                                                                                       151,588,528
                                                                                    --------------
Comcast Corporation Stock Fund (at fair value)
    Class A Special Common Stock                          3,091,635  shares            129,075,764
    Cash                                                                                   777,957
                                                                                    --------------
                                                                                       129,853,721
                                                                                    --------------

Comcast Stable Value Fund (at contract value)
    The Putnam Stable Value Fund                         32,367,133  units              32,367,133
    Other investment contracts                           23,894,778  units              23,894,778
                                                                                    --------------
                                                                                        56,261,911
                                                                                    --------------

Participant Loan Fund (at cost)
    (interest rates from 6.28% to 11.00%;
    maturities from 2001 to 2010)                                                        9,620,740
                                                                                    --------------
                                                                                      $347,324,900
                                                                                    ==============


      The fair value of assets  included  in the Comcast  Stable  Value Fund was
      $67,456,556   and   $56,936,205   as  of  December   31,  2001  and  2000,
      respectively.  The  average  yield  of  investment  contracts  held  as of
      December 31, 2001 and 2000 was 5.48% and 6.41%, respectively.  The average
      yield on investment  contracts  for the years ended  December 31, 2001 and
      2000 was 5.80% and 6.11%, respectively.

5.    PARTICIPANT LOANS AND HARDSHIP WITHDRAWALS

      A participant may borrow from his/her Plan account subject to the approval
      of the Plan Administrator in accordance with applicable regulations issued
      by the Internal  Revenue  Service  ("IRS") and the Department of Labor. In
      general, a participant may borrow a minimum of $500 up to a maximum of the
      lesser  of  $50,000  or 50% of the  participant's  nonforfeitable  accrued
      benefit on the valuation  date (as defined by the Plan) last preceding the
      date on which the loan request is processed by the Plan Administrator. The
      maximum term of a loan made pursuant to the Plan is five years (loans with
      terms of  greater  than  five  years  exist  under the Plan as a result of
      rollovers  from  merged  plans).  Interest  accrues  at a rate  charged by
      commercial  lenders for comparable  loans on the date the loan application
      is approved.  Loan  transactions  are treated as a transfer  from (to) the
      investment fund to (from) the participant loan fund.

      A participant  may withdraw all or a portion of his/her  benefits  derived
      from salary  reduction,  rollovers or the vested portion of pre-January 1,
      2001 employer contributions, and earnings thereon, on account of hardship,
      as defined by the Plan and applicable IRS regulations.  Under these rules,
      the participant must exhaust the possibilities of all other distributions,
      loans, etc. available under the Plan and meet certain other  requirements.
      Upon  receiving  a  hardship   withdrawal,   the  participant's   elective
      contributions are suspended for twelve full calendar months (see Note 9).


                                      -10-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2001, 2000 and 1999 (Concluded)
--------------------------------------------------------------------------------


6.    ADMINISTRATION OF THE PLAN

      The  Company,  as Plan  Administrator,  has the  authority  to control and
      manage the operation and  administration  of the Plan and may delegate all
      or a portion of the  responsibilities  of  controlling  and  managing  the
      operation and administration of the Plan to one or more persons.

7.    FEDERAL TAX CONSIDERATIONS

      a. Income  Tax  Status  of the Plan - The Plan  received  a  determination
         letter  dated  December 19, 1995 in which the IRS stated that the Plan,
         as amended and restated  effective  January 1, 1993,  is qualified  and
         that the trust established  under the Plan is tax-exempt.  The Plan has
         been amended since receiving the determination  letter (see Notes 2 and
         9). A request for an updated  determination letter, which considers the
         2002  amendments,  was filed with the IRS on  February  27,  2002.  The
         Company  believes  that  the  Plan  continues  to  comply  in form  and
         operation with the applicable requirements of the Code. Therefore,  the
         Company  believes that the Plan was qualified and the related trust was
         tax-exempt as of December 31, 2001. Therefore,  no provision for income
         taxes has been included in the Plan's financial statements.

      b. Impact  on  Plan  Participants  -  Matching  contributions  and  salary
         reduction  contributions,  as well as  earnings  on  Plan  assets,  are
         generally not subject to federal  income tax until  distributed  from a
         qualified plan that meets the requirements of Sections  401(a),  401(k)
         and 401(m) of the Code.

8.    AGREEMENT AND PLAN OF MERGER WITH AT&T BROADBAND

      On December 19, 2001,  the Company  entered into an Agreement  and Plan of
      Merger with AT&T Corp.  ("AT&T") pursuant to which the Company agreed to a
      transaction  which will  result in the  combination  of the  Company and a
      holding  company of AT&T's  broadband  business.  Upon the  closing of the
      transaction,  shareholders of the Company will become  shareholders of the
      combined company, AT&T Comcast Corporation.  The transaction is subject to
      customary  closing  conditions  and  shareholder,   regulatory  and  other
      approvals.  The  company  expects to close the  transaction  by the end of
      2002.

9.    SUBSEQUENT EVENTS

      Effective  January 1, 2002,  the Plan was amended such that the suspension
      period  following a hardship  withdrawal was reduced from twelve months to
      six months.

      Effective April 1, 2002, pursuant to the Company's  acquisition of Lenfest
      Communications,  Inc. in 2000, the Compensation  Committee of the Board of
      Directors of the Company  resolved to merge the Lenfest  Group  Retirement
      Plan (the "Lenfest  Plan") with and into the Plan.  Effective May 1, 2002,
      the  assets  and  liabilities  of  the  Lenfest  Plan  became  assets  and
      liabilities of the Plan. The transfer approximated $7,565,000.

      On April 19, 2002, the Investment  Management  Committee for the Plan (the
      "Committee"),   which  monitors  the   performance  of  funds  offered  to
      participants, approved the following to be effective July 1, 2002:

      a. the  addition of the PIMCO  Total  Return  Institutional  Fund (a "core
         bond" fund) and the Ariel Fund (a "small cap value" fund).

      b. the  freezing  of the  Putnam  Investors  Fund,  a fund  deemed  by the
         Committee  to be  under-performing,  and  the  addition  of the  Harbor
         Capital  Appreciation  Fund (a "large cap growth"  fund) to replace it.
         Any existing  investment election directed to the Putnam Investors Fund
         will be automatically invested in the Harbor Capital Appreciation Fund.


                                      -11-



COMCAST CORPORATION RETIREMENT-INVESTMENT PLAN
----------------------------------------------

SCHEDULE H - LINE 4i - SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
DECEMBER 31, 2001
--------------------------------------------------------------------------------




                                                                                             FEIN #23-1709202
                                                                                             PLAN #001


                                                                             Description of
                                                                              Investment,
                             Identity of                                   Including Maturity          Fair or
                       Issue, Borrower, Lessor                          Date, Rate of Interest,       Contract
                           or Similar Party                              Par or Maturity Value          Value
---------------------------------------------------------------------- --------------------------  ---------------

                                                                                                
Mutual Funds (at fair value)
     Dodge and Cox Balanced Fund                                                   618,836 units      $ 40,484,257
     Putnam Investors Fund                                                       3,512,396 units        40,954,541
     Putnam New Opportunities Fund                                                 428,894 units        17,996,395
     Putnam International Growth Fund                                              722,638 units        14,416,635
     Vanguard Windsor II Fund                                                      639,266 units        16,358,805
     Putnam S&P 500 Index Fund                                                     750,368 units        20,897,741
                                                                                                   ---------------
                                                                                                       151,108,374
                                                                                                   ---------------

Comcast Corporation* Stock Fund (at fair value)
     Class A Special Common Stock                                                2,994,708 shares      107,809,475
     Cash                                                                                                    1,171
                                                                                                   ---------------
                                                                                                       107,810,646
                                                                                                   ---------------

Comcast Stable Value Fund (at contract value)
     The Putnam Stable Value Fund                                               52,183,465 units        52,183,465
                                                                                                   ---------------

     Traditional Investment Contracts
       GE Life & Annuity Assurance Co.; 12/16/02 Maturity; 6.00%                1,257,448  units         1,257,448
       John Hancock Life Insurance Co.; 11/22/02 Maturity; 4.60%                1,505,370  units         1,505,370
       Ohio National Life Insurance Co.; 3/14/03 Maturity; 6.26%                 1,267,930 units         1,267,930
       Pacific Life Insurance Co.; 4/15/03 Maturity; 5.15%                       2,352,025 units         2,352,025
       Principal Life Insurance Co.; 5/15/03 Maturity; 5.45%                     1,774,011 units         1,774,011
       SAFECO; 9/16/02 Maturity; 6.93%                                             703,248 units           703,248
                                                                                                   ---------------
                                                                                                         8,860,032
                                                                                                   ---------------

     Security-Backed Investment Contracts
       Bankers Trust; 9/15/02 Maturity; 6.42%                                      943,032 units           943,032
       Westdeutsche Landesbank; 2/25/03 Maturity; 6.42%                            986,896 units           986,896
       Westdeutsche Landesbank; 9/7/03 Maturity; 6.72%                           2,013,464 units         2,013,464
       Westdeutsche Landesbank; 9/15/02 Maturity; 6.83%                          2,092,928 units         2,092,928
                                                                                                   ---------------
                                                                                                         6,036,320
                                                                                                   ---------------

                                                                                                        67,079,817
                                                                                                   ---------------

Participant Loan Fund (at cost, which  approximates  fair value) (Interest rates
     from 6.00% to 11.00%;
     maturities from 2002 to 2010)                                                                      10,308,475
                                                                                                   ---------------
                                                                                                      $336,307,312
                                                                                                   ===============


* Represents a party-in-interest to the Plan.



                                      -12-



INDEPENDENT AUDITORS' CONSENT

We consent to the  incorporation  by reference  in  Registration  Statement  No.
33-63223 of Comcast  Corporation  on Form S-8 of our report  dated June 24, 2002
appearing  in this  Annual  Report  on  Form  11-K  of the  Comcast  Corporation
Retirement-Investment Plan for the year ended December 31, 2001.




/s/ DELOITTE & TOUCHE LLP
Philadelphia, Pennsylvania
June 26, 2002



                                      -13-



                                    SIGNATURE





Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
trustees (or other persons who administer  the employee  benefit plan) have duly
caused this annual report to be signed on its behalf by the undersigned hereunto
duly authorized.





                                             THE COMCAST CORPORATION
                                              RETIREMENT-INVESTMENT PLAN


                                             By:  Comcast Corporation
                                                  Plan Administrator


June 26, 2002                                By:  /s/ Lawrence J. Salva
                                                  ------------------------------
                                                  Lawrence J. Salva
                                                  Senior Vice President and
                                                  Chief Accounting Officer

                                      -14-