You mean they’re written and not spontaneous wit from the hosts minds? I’d be shocked and disillusioned if I ever watched but I don’t so life will go on.
I liked Craig Ferguson. Who knows if it is true, but he said numerous times that a little while after the show got started that he didn’t really need to work at it. He would show up 15 minutes before they taped it. They had a few bits that they would do, but I think they were pretty loose about things.