Company: WBD
Filing Date: 2025-02-27
Form Type: S-3ASR
Source: 0001193125-25-039203
Chunk: 64

Company: Warner Bros. Discovery, Inc.
Filing Date: 2025-02-27
Form: S-3ASR
Chunk 64
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 Discovery, Inc. certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of New York, State of New York, on February 27, 2025.

| WARNER BROS. DISCOVERY, INC. |     |                                       |
| By:                          |     | /s/ David M. Zaslav                   |
| Name:                        |     | David M. Zaslav                       |
| Title:                       |     | President and Chief Executive Officer |

SIGNATURES AND POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints David M. Zaslav, Priya Aiyar and Tara L. Smith, and each of them, his or her true and lawful attorneys-in-factand agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any or all amendments (including post-effective amendments) to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-factand agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-factand agents or any of them, or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

| Signature                    
 /s/ David M. Zaslav          
 David M. Zaslav              
 /s/ Gunnar Wiedenfels        
 Gunnar Wiedenfels            |     | Title                                                                                
 President and Chief Executive Officer, and Director (Principal Executive Officer)    
 Chief Financial Officer (Principal Financial Officer)                                |     | Date              
 February 27, 2025 
 February 27, 2025 |
|:-----------------------------|:----|:-------------------------------------------------------------------------------------|:----|:------------------