LEONARD AND PENNY ARE SHOCKED TO LEARN THAT SHELDON HAD AN ENGAGEMENT RING FOR AMY, ON A REBROADCAST OF "THE BIG BANG THEORY," ON A SPECIAL NIGHT AND TIME, WEDNESDAY, FEB. 17

Wil Wheaton, Adam Nimoy and Stephen Merchant Guest Star

"The Spock Resonance" - While being interviewed for a documentary about Spock from "Star Trek," Sheldon struggles to suppress his emotions about his recent break-up with Amy. Also, Wolowitz and Bernadette butt heads over remodeling his childhood home, on a rebroadcast of THE BIG BANG THEORY, on a special night and time, Wednesday, Feb. 17 (9:30-10:00 PM, ET/PT), on the CBS Television Network. Wil Wheaton, Adam Nimoy and Stephen Merchant guest star. (Originally broadcast 11/5/15.)

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:

Wil Wheaton (Himself)
Casey Sander (Mr. Rostenkowski)

GUEST CAST:

Adam Nimoy (Himself)
Stephen Merchant (Dave)

WRITTEN BY: Chuck Lorre, Jim Reynolds and Tara Hernandez

TELEPLAY BY: Steven Molaro, Steve Holland and Jeremy Howe

DIRECTED BY: Nikki Lorre