Cast and EPs of CBS's The Big Bang Theory gather at PaleyFest LA 2016 to celebrate their show. Topics include: Penny and Leonard's long-awaited marriage; Bob Newhart as Sheldon's late mentor Professor Proton; other guest stars like Adam West, Elon Musk, and Judd Hirsch; interactions with extremely friendly fans; Cuoco's contentment with Penny's evolution; their constant surprise at the scripts' reveals; Sheldon and Amy's non-traditional romance; performing in front of live audiences; the show's tight writing and filming schedule; and whether the actors genuinely love comic books.
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