Editor's note: The start time of this episode has changed.

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, FEB. 15

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, Feb. 15 (9:01-9:30 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