I was a little disappointed to find out that the show was rehearsed.
I used to think that Paul Merton and Ian Hislop were just comedy gods but they actually work out their material beforehand.
I'm sure some people would say "well duh." But I really had no idea.
I've got a friend who used to work on the show who explained that there is just too much money at stake for anyone to take a chance by relying solely on spontaneity because if there are chunks of the show where the audience isn't laughing then the show is going to tank and eventually get cancelled.
So yeah Paul and Ian know what questions are going to be asked and plan their jokes out though they do get suggestions from some behind the scenes writers which they'll then change to suit themselves or discard, they then have a little meeting to work out who gets to use their material for each question, I guess whoever's got the funniest joke gets it. They also plan out their repartee with each other so it doesn't feel staged.
Of course as I found out the guests have to come up with their stuff on the spot and don't get let in on the planning, so if they come up with some funny quips then great but if they don't Paul and Ian can then shoulder the load and keep the show running. Makes sense, no one can be that quick and funny show after show without a bit of help.
And I guess it's the same on all of these sort of shows, the captains on 8 Out Of Ten Cats (Sean and Jason) deliver killer stuff every episode but aren't nearly as funny when they're guests on other peoples shows like QI or Would I Lie To You.
I'm not really complaining though because if it keeps these shows as funny as they are then it's a good thing, and hey a lot of stand up comics hire people to write their stand-up so it's not new or anything.