CBS

Season 7: Episode 13 - Yay, No Polyps

Yay, No Polyps: In an attempt to avoid going with Chelsea to visit her parents, Charlie lies and tells her he needs to be in town because he has a colonoscopy appointment. Chelsea discovers that Charlie made it all up and instead arranges for her parents to come stay with them for a couple of days. Alan, Berta and Jake are all in on it. Chelsea tells Charlie that he can keep his colonoscopy appointment. While at the house Chelsea’s dad (Stacy Keach) confesses to Charlie and Alan that he gay and wants to meet up with his old Navy friend in Valencia. Charlie's lie wasn’t so bad after all.