LEONARD AND PENNY ARE SHOCKED TO LEARN THAT SHELDON HAD AN ENGAGEMENT RING FOR AMY, WHEN "THE BIG BANG THEORY" MOVES TO ITS REGULAR TIME PERIOD, THURSDAY, NOV. 5

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 THE BIG BANG THEORY, Thursday, Nov. 5 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Wil Wheaton, Adam Nimoy and Stephen Merchant guest star.

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 (Ethan)

WRITTEN BY: Chuck Lorre, Jim Reynolds and Tara Hernandez

TELEPLAY BY: Steven Molaro, Steve Holland and Jeremy Howe

DIRECTED BY: Nikki Lorre