SHELDON AND AMY HOST A SPECIAL EPISODE OF "FUN WITH FLAGS" FOR VALENTINE'S DAY, ON "THE BIG BANG THEORY," THURSDAY, FEB. 11

"The Valentino Submergence" - Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the Comic Bookstore, on THE BIG BANG THEORY, Thursday, Feb. 11 (8:00-8:31 PM, ET/PT), on the CBS Television Network.

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:

Laura Spencer (Emily)
John Ross Bowie (Kripke)

GUEST CAST:

Alessandra Torresani (Claire)
Creagen Dow (Maitre D')
Shane Blades (Customer)

WRITTEN BY: Steve Molaro, Jim Reynolds, Tara Hernandez

TELEPLAY BY: Steve Holland, Eric Kaplan, Jeremy Howe

DIRECTED BY: Mark Cendrowski