I'm Sorry I Haven't a Clue new series rotating with the other Monday night comedy staples such as "The Unbelievable Truth", "The Museum Of Curiosity" and "Just a Minute". Excluding compilations and repeats, this totals 481 episodes, (excluding series 70). Some early episodes of the series, including the first, were wiped in the late 1970s. Following the BBC's Treasure Hunt appeal for missing material in 2002, several shows were recovered from off-air recordings made by listeners. In 2007, "I'm Sorry I Haven't a Clue: The Official Stage Tour" visited 9 locations across England. While the broadcast shows are recorded on location, this was the first ISIHAC
Radio comedy Way. Many of the BBC's most successful television comedies began life as radio shows. These include "Hancock's Half Hour", "Goodness Gracious Me", "Knowing Me, Knowing You", "The League of Gentlemen", "Whose Line Is It Anyway?", "Room 101", "Have I Got News For You", (based on Radio 4's "The News Quiz"), "Dead Ringers" and most recently "Little Britain" and "Absolute Power". The science fiction comedy "Red Dwarf" was developed from ideas in a radio show called "Son Of Cliché". Another science fiction comedy "The Hitchhiker's Guide to the Galaxy" was created for radio, but also went on to great success in