Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
ROBERTS RALPH J
2. Issuer Name and Ticker or Trading Symbol
COMCAST CORP [CMCSA]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman-Exec & Finance Comm
(Last)
(First)
(Middle)

COMCAST CORPORATION, 1500 MARKET STREET
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2004
(Street)


PHILADELPHIA, PA 19102
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(check applicable line)

_X_ Form Filed by One Reporting Person
___ Form Filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Class A Special Common Stock 10/07/2004   G 1,868 D (1) $ (1) 2,023,549 (2) D  
Class A Special Common Stock 11/22/2004   G 561 D (3) $ (3) 2,022,988 (2) D  
Class A Special Common Stock 11/22/2004   G 561 D (3) $ (3) 2,022,427 (2) D  
Class A Special Common Stock 11/22/2004   G 654 D (4) $ (4) 2,021,773 (2) D  
Class A Special Common Stock 11/22/2004   G 654 D (4) $ (4) 2,021,119 (2) D  
Class A Special Common Stock             371,351 (2) I By Family Partnerships

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
ROBERTS RALPH J
COMCAST CORPORATION
1500 MARKET STREET
PHILADELPHIA, PA 19102
  X     Chairman-Exec & Finance Comm  

Signatures

/s/ Roberts, Ralph J. 02/10/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The shares were initially transferred by gift from the Reporting Person to the Reporting Person's spouse, who shares the Reporting Person's household, and then on 10/20/04 were transferred from the Reporting Person's spouse to family limited partnerships.
(2) Between 10/04/04 and 11/22/04, there were intervening changes in the reporting person's form of beneficial ownership. After the transactions reported on this Form 5, the reporting person directly beneficially owned at the end of the Issuer's fiscal year 2,021,119 shares of Class A Special Common Stock and indirectly beneficially owned 371,351 shares of Class A Common Stock through family limited partnerships.
(3) Gifts to spouse who shares the Reporting Person's household; gifts are units in family limited liability companies, which are the general partners of family limited partnerships holding shares of Class A Special Common Stock.
(4) Gifts of units in family limited liability companies, which are the general partners of family limited partnerships holding shares of Class A Special Common Stock.

Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.