I saw the Unknown Comic (Murray Langston) at a hole in the wall in Vegas years ago. Nearly non stop belly laughs.
Another great show was ‘Make Me Laugh’.
One of the funniest stunts (and the contestant immediately laughed and lost) was when the comic (I think it was Langston) came out, stood silent for a few seconds, and then drooled out a mouthful of water. I crack up just thinking about it.
I just watched a clip of him on YouTube, where a woman storms the stage claiming he's the father of her baby. A skeptical Chuck Barris asks, how do you know he's the father? The woman pulls back the blanket to show him the baby. It's wearing a tiny brown paper bag over its head. Barris is then convinced.
Another great show was Make Me Laugh.
I remember that show. It was pretty good too.