Sometimes in the middle of a joke he would stop, say "Sorry I fucked that up I'm gonna start over", and then start over that part of the show. And some of the jokes had funny bits in the middle but when you saw them on the eventual next special they were much tighter and more polished. And sometimes the jokes fell flat and weren't in the next special.
This feels like one of his workshops. If this were preformed live in front of 100 nights of audiences and tuned up, it would be amazing.