Editor's note: The air time of this episode has changed.

EMMY AWARD WINNER BOB NEWHART RETURNS AS SHELDON'S OBI-WAN KENOBI TO ADVISE HIM ON A DIFFICULT RELATIONSHIP DECISION, ON A REBROADCAST OF "THE BIG BANG THEORY," THURSDAY, SEPT. 29

"The Opening Night Excitation" - After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz and Koothrappali must decide who will take their extra Star Wars movie ticket, on a rebroadcast of THE BIG BANG THEORY, Thursday, Sept. 29 (9:01-9:31 PM, ET/PT), on the CBS Television Network. Emmy Award winner Bob Newhart returns as Sheldon's Obi-Wan Kenobi. (Originally broadcast 12/17/15.)

REGULAR CAST

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

RECURRING CAST

Kevin Sussman (Stuart)

GUEST CAST:

Bob Newhart (Arthur)
Wil Wheaton (Himself)
Jeff Witzke (Movie Goer, O.S)

WRITTEN BY: Steven Molaro Eric Kaplan and Tara Hernandez

TELEPLAY BY: Steve Holland, Jim Reynolds and Maria Ferrari

DIRECTED BY: Mark Cendrowski