The Big Bang Theory Season 7 Episode 22: The Proton Transmogrification

CBS has released a sneak preview of Season 7 Episode 22 of The Big Bang Theory, which is called "The Proton Transmogrification." In "The Proton Transmogrification" episode, Professor Proton helps Sheldon cope with grief, while Leonard turns a relationship milestone into a competition with Penny. Meanwhile, Amy and Bernadette make a "Star Wars Day" gift for the guys. "The Proton Transmogrification" episode is directed by Mark Cendrowski from a story by Jim Reynolds, Maria Ferrari and Jeremy Howe and teleplay by Steven Molaro, Eric Kaplan and Steve Holland. "The Proton Transmogrification" episode of The Big Bang Theory airs on Thursday, May 1, 2014 from 8:00 PM to 8:31 PM ET/PT on CBS.