I'm Sorry I Haven't a Clue on a 2012 show which featured Victoria Wood. A 2013 episode featured a round of "Useless Celebrities", a parody of "Pointless Celebrities", and featured Richard Osman as the co-presenter (this was broadcast three years before Osman appeared on the panel). A 2017 episode featured a spoof of "The Chase" which featured Anne Hegerty, one of the Chasers from the show. On one occasion Humph announced that they had a very distinguished actor as a guest who would join in the game of Mornington Crescent. When the game started, after great ceremony, the penultimate player, the last of the panellists, won
I'm Sorry I Haven't a Clue who has worked on the show since 1992. "I'm Sorry I Haven't a Clue" developed from the long-running radio sketch show "I'm Sorry, I'll Read That Again", the writers of which were John Cleese, Jo Kendall, David Hatch, Bill Oddie, Tim Brooke-Taylor and especially Graeme Garden who suggested the idea of an unscripted show which, it was decided, would take the form of a parody panel game. A panel game with no competition was not itself a new idea: the BBC had a history of successful quiz shows designed to allow witty celebrities to entertain where winning was not important.