re: Have any of you ever been in the audience of a late night talk show?

I did Kilborn back in the day and it was fun. The commercial breaks were great because he would walk around and interact with the crowd.

Got to do Jimmy Kimmel when he first started and it wasn't exactly a prime time show yet. Still a great time and he is hilarious. No added laughter that I could tell but they do hold up signs to be loud, laugh, etc. Not as bad as a game show though.