The show has over two million listeners on Radio 4 and its recording sessions typically fill 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 down opportunities to work on it as he preferred to remain a listener.