I´m Sorry, I´ll Read That Again (often abbreviated as ISIRTA) is a BBC radio comedy programme that originated from the 1964 Cambridge University Footlights revue, Cambridge Circus. This is a scripted sketch show. It had a devoted youth following, with the live tapings enjoying very lively audiences, particularly when familiar themes and characters were repeated; a tradition that continued into the spinoff show I’m Sorry I Haven’t a Clue. The show was a melange of silly voices, awful puns, and mildly smutty humor, in no particular order, with the audience controlling most of the show in later series (no order at all.) If this sounds like Monty Python’s Flying Circus, it should. Cleese was a Sorry old time radio cast member. In fact, ISIRTA is notable for the amount of talent that festered within the group.