PENNY FIGURES OUT THE 'SECRET' TO SHELDON, ON "THE BIG BANG THEORY," MONDAY, OCT. 23
"The Collaboration Contamination" - Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together. Also, Penny and Leonard learn new tactics for how to deal Sheldon from an unlikely source, on THE BIG BANG THEORY, Monday, Oct. 23 (8:00-8:31 PM, ET/PT) on the CBS Television Network.
STORY BY: Steven Molaro, Steve Holland, Eric Kaplan
TELEPLAY BY: Dave Goetsch, Maria Ferrari, Jeremy Howe
DIRECTED BY: Nikki Lorre