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 1500-seat theatres within a week of being advertised. At least one recording for the spring 2006 series filled all its seats within three hours of the free tickets being made available, and the London recording of the autumn series in that year sold out in ten minutes. Although there are twelve "Clue" shows broadcast per year these are the result of just six recording sessions, with two programmes being recorded back-to-back. The show was recently voted the second funniest radio programme ever, after "The Goon Show". It has a large following among professional comedians such as Armando Iannucci, who turned