The Big Bang Theory: The 10 Storylines the Cast and EPs Struggle With Now — Including Ill-Fated Penny/Raj Romance

At 279 episodes, The Big Bang Theory holds the record for longest-running multi-camera comedy in television history. But not every one of those episodes has aged particularly well.

In the newly released oral history The Big Bang Theory: The Definitive, Inside Story of the Epic Hit Series by Jessica Radloff (order it here), cast members Jim Parsons, Kaley Cuoco, Mayim Bialik, Simon Helberg and Kunal Nayyar are among those who speak out about the storylines they struggled with at the time — and, in some cases, continue to struggle with now. And they’re not alone: Executive producers Chuck Lorre, Lee Aronsohn, Steve Molaro and Steve Holland weigh in on a number of decisions they wish they could undo, from the Season 4 finale “sleepover” that sought to shake things up in a big way, to the surprise pregnancy that capped Leonard and Penny’s 12-season journey.

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Scroll down to review Big Bang‘s least flattering storylines, then hit the comments and tell us if you’d rewrite (or completely do away with) any of ’em.

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