Season 4 of “The Big Bang Theory” ended with one of the show’s most controversial cliffhangers: Penny and Raj waking up in bed together. Executive producer and showrunner Steve Molaro reveals why he had such strong feelings about the storyline — and how he spent the entire summer hiatus trying to figure out a way to undo it. Plus, Steve explains why he and the writers ultimately decided Raj should remain single at the end of the series. All episodes of “The Big Bang Theory” are available on HBO Max. © 2026 WBEI. THE BIG BANG THEORY characters and elements are © & TM WBEI. Learn more about your ad choices. Visit podcastchoices.com/adchoices
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