As Will correctly mentions, Jonathan Miller's 1987 production was set in the 1920's - the same set could have easily been used for The Boy Friend, or Salad Days. Eric Idle appeared as Ko-Ko, Lesley Garrett as Yum-Yum, Bonaventura Bottone as Nanki-Poo. Mr Idle was never going to be one who sat quietly in a corner on stage. One line from Ko-Ko's little list - "Bishops who don't believe in God, Chief Constables who do ....".