I'm Sorry I Haven't a Clue pause in the middle of speaking, a reference to Radio 4's other long-running panel show "Just a Minute". (Likewise, occasionally on "Just a Minute", a panellist will make a challenge of "Mornington Crescent".) Chairman Jack Dee frequently pokes fun at "Just a Minute", particularly its chairman Nicholas Parsons, whom he mimics in constantly emphasising the long experience of some panellists, and the fact that the programme can be heard all over the world. The programme has won the Gold Sony Radio Comedy Award three times: Other awards: "Clue" has been broadcast since 11 April 1972 on BBC Radio 4 with
Just a Minute significant historical events. He also often wins points by challenging just before the whistle or for humorous challenges, another technique being to say the same word in the singular and the plural, for inexperienced panellists to challenge falsely. Over the 50-year history of the show, there have been many other panellists. Those to have appeared frequently, more than 20 times each, are Pam Ayres, Gyles Brandreth, Marcus Brigstocke, Julian Clary, Alun Cochrane, Charles Collingwood, Barry Cryer, Jenny Eclair, Stephen Fry, Sheila Hancock, Tony Hawks, Kit Hesketh-Harvey, Josie Lawrence, Aimi MacDonald, Andree Melly, Chris Neill, Ross Noble, Graham Norton, Sue Perkins,