SHELDON CRAVES MOTHERLY LOVE, ON "THE BIG BANG THEORY," THURSDAY, OCT. 20

Laurie Metcalf Reprises Her Role as Sheldon's Mother

"The Rhinitis Revelation" - Sheldon competes with the gang for his mother's attention when she comes to visit, on THE BIG BANG THEORY, Thursday, Oct. 20 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Laurie Metcalf reprises her role as Sheldon's mom.

SERIES REGULARS:

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

GUEST STAR:

Laurie Metcalf (Mary)

STORY BY: Chuck Lorre, Eric Kaplan and Steve Holland

TELEPLAY BY: Bill Prady, Steven Molaro and Jim Reynolds

DIRECTED BY: Howard Murray

RATING: To Be Announced