This radio program regulary attracts more than 2.5 million listeners in the UK (and Mrs. Trellis from North Wales), a figure that would be a respectable viewing figure for BBC 2 or Channel 4.
As noted above it began in 1972, but was a spin off from I'm Sorry I'll Read That Again. It has been said that this is the choice of comedy program for many professional comedians. Such is the high quality of panelists attracted over the years (Such as John Cleese, Paul Merton, Stephen Fry, Jack Dee, to name a few, as well as the 'regulars' noted in the write-up above), that the show has won just about every prize going.

One of my favourite rounds in 'I'm Sorry I Haven't a Clue', is Sound Charades . This is exactly like the normal party game of charades, except that the contestants are allowed to speak. They try to describe a film, book, or television programme, or something just plain silly. This involves giveing the clue in as cryptic manner as possible, usually with heavy use of puns.

The game of charades was popularised by the BBC tv show 'Give Us A Clue', I have fond memories of this.... Who can forget Una Stubbs finishing off 'Twelve Angry Men' in under a minute?