Apparently, according to Wikipedia, Peter Cook and Chris Morris collaborated on “A set of unscripted interviews” broadcast on Radio 4 under the title “Why Bother” in 1993.
From that article, Chris Morris says:
“It was a very different style of improvisation from what I’d been used to, working with people like Steve Coogan, Doon Mackichan and Rebecca Front, because those On the Hour and The Day Today things were about trying to establish a character within a situation, and Peter Cook was really doing ‘knight’s move’ and ‘double knight’s move’ thinking to construct jokes or ridiculous scenes flipping back on themselves, and it was amazing. I mean, I held out no great hopes that he wouldn’t be a boozy old sack of lard with his hair falling out and scarcely able to get a sentence out, because he hadn’t given much evidence that that wouldn’t be the case. But, in fact, he stumbled in with a Safeways bag full of Kestrel lager and loads of fags and then proceeded to skip about mentally with the agility of a grasshopper. Really quite extraordinary.”
Outstanding. And good lord, would you believe it, here it is on Amazon. Cor.
–c.