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

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
ADVANCE LONG-TERM MANAGEMENT TRUST
  2. Issuer Name and Ticker or Trading Symbol
Discovery Communications, Inc. [DISC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
4 TIMES SQUARE
3. Date of Earliest Transaction (Month/Day/Year)
12/10/2010
(Street)

NEW YORK, NY 10036
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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 Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Series C preferred stock, par value $0.01 per share 12/10/2010   D   13,732,491 D $ 36.41 57,374,821 I See footnotes (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ADVANCE LONG-TERM MANAGEMENT TRUST
4 TIMES SQUARE
NEW YORK, NY 10036
    X    
NEWHOUSE FAMILY HOLDINGS, L.P.
4 TIMES SQUARE
NEW YORK, NY 10036
    X    
ADVANCE PUBLICATIONS INC
950 FINGERBOARD ROAD
STATEN ISLAND, NY 10305
    X    
NEWHOUSE BROADCASTING CORP
5000 CAMPUSWOOD DRIVE
EAST SYRACUSE, NY 13057-4250
    X    

Signatures

 Advance Long-Term Management Trust, By: /s/ Donald E. Newhouse, as Trustee, on behalf of Advance Long-Term Management Trust   12/13/2010
**Signature of Reporting Person Date

 By: /s/ S.I. Newhouse, Jr., as Trustee, on behalf of Advance Long-Term Management Trust   12/13/2010
**Signature of Reporting Person Date

 Newhouse Family Holdings, L.P., By: Advance Long-Term Management Trust, as General Partner, By: /s/ Donald E. Newhouse, as Trustee, on behalf of Advance Long-Term Management Trust   12/13/2010
**Signature of Reporting Person Date

 By: /s/ S.I. Newhouse, Jr., as Trustee, on behalf of Advance Long-Term Management Trust   12/13/2010
**Signature of Reporting Person Date

 Advance Publications, Inc., By: /s/ Donald E. Newhouse, as President, on behalf of Advance Publications, Inc.   12/13/2010
**Signature of Reporting Person Date

 Newhouse Broadcasting Corp., By: /s/ Donald E. Newhouse, as President, on behalf of Newhouse Broadcasting Corp.   12/13/2010
**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) Each of Newhouse Broadcasting Corporation ("NBCo"), Advance Publications, Inc. ("API"), Newhouse Family Holdings, L.P. ("NFH") and Advance Long-Term Management Trust ("AMT", and together with NBCo, API and NFH, the "Reporting Persons") may be deemed to beneficially own 57,374,821 shares of Series C preferred stock, par value $0.01 per share of the Issuer through control of Advance/Newhouse Programming Partnership ("ANPP"). NBCo is the indirect majority owner of ANPP. API indirectly holds a 35% interest in ANPP through various subsidiaries. NFH is the sole shareholder of API. AMT is the general partner of NFH. This Form 4 is being filed on behalf of each of the Reporting Persons. For further information on the Reporting Persons, see their Schedule 13D/A filed on December 13, 2010.

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