A FIGHT BETWEEN LEONARD AND SHELDON DRIVES LEONARD TO MOVE IN WITH PENNY, ON "THE BIG BANG THEORY," THURSDAY, FEB. 7

"The Spoiler Alert Segmentation" - When Sheldon and Leonard fight, it affects Penny and Amy's living arrangements. Meanwhile, Raj takes care of Mrs. Wolowitz while Howard is away, on THE BIG BANG THEORY, Thursday, Feb. 7 (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)

STORY BY: Chuck Lorre, Eric Kaplan and Steve Holland

TELEPLAY BY: Steven Molaro, Maria Ferrari and Adam Faberman

DIRECTED BY: Mark Cendrowski

RATING: To Be Announced