AFTER HEARING LEONARD AND PRIYA INDULGE IN A "STAR TREK" BEDROOM FANTASY, RAJ MOVES IN WITH SHELDON, ON THE FOURTH SEASON FINALE OF "THE BIG BANG THEORY," THURSDAY, MAY 19

"The Roommate Transmogrification" - When Bernadette receives her Ph.D., the guys take joy in reminding an emasculated Wolowitz that he is the only one in their group who isn't a doctor. Meanwhile, Koothrappali becomes Sheldon's new roommate after hearing Leonard and Priya engaging in a "Star Trek" bedroom fantasy, on the fourth season finale of THE BIG BANG THEORY, Thursday, May 19 (8:00-8:31 PM, ET/PT) on the CBS Television Network.

SERIES REGULARS:

Leonard........................................................... Johnny Galecki
Sheldon................................................................. Jim Parsons
Penny.................................................................. Kaley Cuoco
Wolowitz.......................................................... Simon Helberg
Koothrappali...................................................... Kunal Nayyar

RECURRING CAST:

Bernadette......................................................... Melissa Rauch
Amy.................................................................... Mayim Bialik
Mrs. Wolowitz................................................. Carol Ann Susi
Priya...................................................................... Aarti Mann

GUEST STARS:

Dr. Koothrappali................................................. Brian George
Mrs. Koothrappali................................................. Alice Amter

STORY BY: Chuck Lorre & Steven Molaro & Eddie Gorodetsky

TELEPLAY BY: Bill Prady & Eric Kaplan & Jim Reynolds

DIRECTED BY: Mark Cendrowski

RATING: To Be Announced