I'm Sorry I Haven't a Clue show's longevity. On 18 April 2008 the producer of "I'm Sorry I Haven't A Clue", Jon Naismith, announced that, owing to hospitalisation to repair an aortic aneurysm, Humphrey Lyttelton would be unable to record the scheduled shows and that they would have to be postponed. The final show of the 2008 "Best of" tour on 22 April would be presented by Rob Brydon. Following Lyttelton's death there was speculation that the series might be cancelled because replacing him would be extremely difficult if not impossible. In a eulogy in "The Guardian", Barry Cryer did not allude to the future of
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.