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The Big Bang Theory

"The Proton Transmogrification" -- Amy and Bernadette make a âÃÂÃÂStar Wars DayâÃÂàgift for the guys, on THE BIG BANG THEORY, Thursday, May 1 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mayim Bialik, Melissa Rauch, Johnny Galecki, Simon Helberg, Jim Parsons, Kunal Nayyar and Kaley Cuoco-Sweeting ***Please Note: This photo may only be used for promotion and review of this episode of The Big Bang Theory,"The Proton Transmogrification", and may not be used for general promotion of The Big Bang Theory or any other purpose*** Photo: Sonja Flemming/CBS ÃÂé2014 CBS Broadcasting, Inc. All Rights Reserved

Big Bang Theory Stills