It's a shame that David Letterman is off this week, because news of Conan O'Brien's return to late night provided hosts with the perfect excuse to make fun of Jay Leno. Jimmy Kimmel responded to the TBS deal with a monologue joke that reiterated his Team Coco affiliation, and while The Colbert Report's Leno zinger didn't reference the deal directly, it seemed too timely to be coincidental. It's still unknown if Andy Richter will accompany Conan to cable, but Craig Ferguson mused on the possibility of a replacement sidekick. Jay Leno didn't mention his once and future rival, but things took a turn for the awkward all the same when Jenna Elfman talked about being aroused by an onscreen make-out. She did say she was eight months pregnant at the time, not that it made her telling the story any less weird. Watch our compilation to see what you missed.