"The Tangible Affection Proof" –  While the guys try to give their significant others the perfect Valentine’s Day, Raj and Stuart throw a “lonely people” party at the comic book store, on THE BIG BANG THEORY, Thursday, Feb. 14 (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)
Melissa Rauch   (Bernadette)
Mayim Bialik   (Amy)

GUEST CAST:

Kevin Sussman (Stuart)

Margo Harshman (Alex)

Josh Brener (Dale)

Kate Minucci (Lucy)

Briana Cuoco (Gretchen)

STORY BY:  Chuck Lorre, Bill Prady and Steve Holland

TELEPLAY BY: Steven Molaro, Jim Reynolds and Tara Hernandez

DIRECTED BY:  Mark Cendrowski

GENRE:  COMEDY

RATING:  To Be Announced

Photos now available at: www.cbspressexpress.com

Official CBS Website: http://www.cbs.com/big_bang_theory/ 

Facebook: http://www.facebook.com/TheBigBangTheory  

Twitter: http://twitter.com/BigBang_CBS  

CBS Twitter:  http://twitter.com/CBSTweet  

Cast on Twitter:
Kaley Cuoco @KaleyCuoco
Simon Helberg@SimonHelberg
Kunal Nayyar @KunalNayyar
Mayim Bialik @MissMayim
Melissa Rauch @ReallyRauch

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Press Contacts:  
Lori DelliColli    818-655-1589   Ladellicolli@cbs.com
Andrea Ballas  818-655-1581   Andrea.Ballas@cbs.com   

Photo Contacts:  
Jeff Staab         212-975-4107   jstaab@cbs.com  
Kathleen Tanji  818-655-1543    Kathleen.Tanji@cbs.com