Sound Charades is a variant of charades played on BBC Radio 4's "antidote to panel games", I'm Sorry I Haven't a Clue. As with some other ISIHAC games, such as Celebrity What's My Line?, the game has been created by taking an existing one and removing the central concept. As the late chairman Humphrey Lyttelton put it: "In the original, the players were not allowed to speak, resulting in much hilarity. Our version differs subtly in two ways."
The format of the game is largely similar to the original. One team is given the name of a book, film, television or radio series. They announce the number of words and the format, and act out a short improvised play, conveying the title, usually by means of a rather forced pun.
For instance, the clue for the BBC 2 science documentary series Q.E.D. was:
Occasionally, truly masterful clues are given: for example the film Dirty Harry was clued with the single line "Potter! ... Don't do that.", delivered in an impression of Alan Rickman's portrayal of Severus Snape. Another memorable clue was for the film Monsters, Inc., in which Barry Cryer and Graeme Garden are about to do the washing up, at which point Barry cries "Good lord! You don't wash the dishes in this, do you? It's enormous!" ["Monster Sink"]
As the above shows, the sketches would often belabour the point somewhat. This was particularly true in later years when Graeme Garden and Barry Cryer invented the characters of Hamish and Dougal, two rural Scotsmen who featured regularly in the sketches, and later were given their own series, You'll Have Had Your Tea.