WHEN THE GANG HEARS ABOUT AN EXPERIMENT DESIGNED TO MAKE PARTICIPANTS FALL IN LOVE, SHELDON AND PENNY PUT IT TO THE TEST, ON "THE BIG BANG THEORY," THURSDAY, FEB. 26

"The Intimacy Acceleration" - As a joke, Sheldon and Penny try an experiment designed to make participants fall in love. Also, Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie." And, after returning from Mrs. Wolowitz' funeral, Bernadette and Howard run into trouble at the airport, on THE BIG BANG THEORY, Thursday, Feb. 26 (8:00-8:31 PM, ET/PT), on the CBS Television Network.

REGULAR CAST:

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

RECURRING CAST:

Laura Spencer (Emily)

GUEST CAST:

Stephanie Escajeda (Cindy)
Molly Morgan (Hostess)
Max Alder (Zombie)

WRITTEN BY: Dave Goetsch, Eric Kaplan, Tara Hernandez

TELEPLAY BY: Steve Molaro, Jim Reynolds, Steve Holland

DIRECTED BY: Mark Cendrowski