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 * LASALA JOSEPH A JR   2. Issuer Name and Ticker or Trading Symbol Discovery Communications, Inc. [DISCA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SEVP, Gen'l Counsel, Sec'y (Last) (First) (Middle) ONE DISCOVERY PLACE 3. Date of Earliest Transaction (Month/Day/Year) 03/01/2010 (Street) SILVER SPRING, MD 20910 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(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 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 A Common Stock 03/01/2010(1)   M   53,831 A $ 20.86 53,831 D   Series A Common Stock 03/01/2010(1)   D   53,831 D $ 33.09 0 D

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

DAP Units (Stock Appreciation Rights)

$ 20.86

03/01/2010

M

53,831

02/15/2009(2)

02/15/2012

Series A Common Stock

53,831

$ 0

107,663

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LASALA JOSEPH A JR ONE DISCOVERY PLACE SILVER SPRING, MD 20910			SEVP, Gen'l Counsel, Sec'y

Signatures

/s/ Joseph A. LaSala, Jr.		03/03/2010
**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)	The DAP Units in respect of these shares of stock vested and became payable on February 15, 2010. Under the terms of the DAP, however, the amounts payable in respect of the vested units are calculated based on the average closing prices for the 10 trading days preceding and including the vesting date and the 10 trading days after the vesting date. The DAP Units are cash-settled awards.
(2)	These DAP Units vest in four annual installments beginning February 15, 2009. On vesting, the DAP Units are automatically settled in cash.
Remarks: The trading symbols for the Issuer's Series A, Series B and Series C common stock are, respectively, DISCA, DISCB and DISCK.

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