WHAT DID SHE SAY? FIND OUT AMY'S ANSWER TO SHELDON'S MARRIAGE PROPOSAL ON A REBROADCAST OF THE 11th SEASON PREMIERE OF "THE BIG BANG THEORY," THURSDAY, DEC. 21

Editor's note: This episode replaces previously scheduled programming.

Laurie Metcalf Returns as Sheldon's Mother, Mary, Riki Lindhome Returns as Ramona, and Stephen Hawking Returns to Guest Star as Himself

"The Proposal Proposal" - Amy gives Sheldon an answer to his proposal while Howard and Bernadette struggle with some unexpected news, on a rebroadcast of the 11th season premiere of THE BIG BANG THEORY, Thursday, Dec. 21 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Laurie Metcalf returns as Sheldon's mother, Mary; Riki Lindhome returns as Ramona; and Stephen Hawking returns as himself. (Originally broadcast 9/25/17.)

REGULAR CAST:

Johnny Galecki (Leonard)
Jim Parsons (Sheldon)
Kaley Cuoco (Penny)
Simon Helberg (Wolowitz)
Kunal Nayyar (Koothrappali)
Mayim Bialik (Amy)
Melissa Rauch (Bernadette)

RECURRING CAST:

Kevin Sussman (Stuart)
Laurie Metcalf (Mary)
Riki Lindhome (Ramona)
Stephen Hawking (Himself)

GUEST CAST:

George Wyner (Dr. Zhang)
Susan Chuang (Dr. Harris)

STORY BY: Chuck Lorre, Eric Kaplan, Jeremy Howe

TELEPLAY BY: Steve Holland, Maria Ferrari, Tara Hernandez

DIRECTED BY: Mark Cendrowski