AMY CONVINCES SHELDON TO JOIN HER FOR A ROMANTIC WEEKEND IN NAPA VALLEY TO CELEBRATE VALENTINE'S DAY, ON "THE BIG BANG THEORY" THURSDAY, FEB. 6

"The Locomotive Manipulation" - Love is in the air when Sheldon and Amy join Howard and Bernadette for a trip to wine country. Meanwhile, Leonard and Penny must rush Raj's dog to the vet, on THE BIG BANG THEORY, Thursday, Feb. 6 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network.

CAST:

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

GUEST STAR:

Tania Raymonde (Yvette)
Eric Petersen (Eric)
Alex Ball (Waiter)

STORY BY: Jim Reynolds, Steve Holland and Tara Hernandez

TELEPLAY BY: Steven Molaro, Eric Kaplan and Maria Ferrari

DIRECTED BY: Mark Cendrowski

RATING: To Be Announced