Just noticed, but John's mentioned briefly in this week's extended version of Have I got News for You; his face was in the "Triviometer" in the normal episode but he's actually talked about
here. (BBC iplayer, sorry!) You may need to skip to 26.23.
(Anything that has the words "walrus" and "saxophone" in the same sentence in relation to John is automatically brilliant, I think. That or slightly bizarre, and Izzard-esque.)