At the end of The Big Bang Theory season 4, the show shocked fans with one of its most controversial twists: Penny (Kaley Cuoco) and Raj (Kunal Nayyar) waking up together after a night of drinking.
Several key figures strongly disliked the unexpected pairing, sparking a backstage meltdown, and producers quickly undid the major reveal. Years after the sitcom ended, one of its stars is finally reflecting on the controversial twist, and here’s what he had to say.