CBS has released images and an official synopsis for the March 6 episode of The Big Bang Theory.

WOLOWITZ INVITES SHELDON TO TRAVEL TO HOUSTON WITH HIM IN AN ATTEMPT TO IMPROVE THEIR FRIENDSHIP, ON “THE BIG BANG THEORY,” THURSDAY, MARCH 6
“The Friendship Turbulence” – After the insults fly, Bernadette tries to broker the peace between Wolowitz and Sheldon. Meanwhile, Penny is offered an embarrassing movie role and Raj asks Amy to write to a woman on his behalf, on THE BIG BANG THEORY, Thursday, March 6 (8:00 – 8:31 PM, ET/PT) on the CBS Television Network.
CAST: Johnny Galecki (Leonard), Jim Parsons (Sheldon), Kaley Cuoco-Sweeting (Penny), Simon Helberg (Wolowitz), Kunal Nayyar (Koothrappali), Mayim Bialik (Amy), Melissa Rauch (Bernadette)
GUEST STARS: Laura Spencer (Emily), Gilda Stratton (Flight Attendant V.O)
STORY BY: Steven Molaro, Eric Kaplan and Tara Hernandez
TELEPLAY BY: Jim Reynolds, Steve Holland and Maria Ferrari
DIRECTED BY: Mark Cendrowski
Here are some photos:
THE BIG BANG THEORY
"The Friendship Turbulence" -- Penny is offered an embarrassing movie role, on THE BIG BANG THEORY, Thursday, March 6 (8:00 âÃÂà8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Jim Parsons, Kaley Cuoco-Sweeting and Johnny Galecki Photo: Michael Yarish/Warner Bros. Entertainment Inc. ÃÂé 2014 WBEI. All rights reserved.