I'm Sorry I Haven't a Clue on a 2012 show which featured Victoria Wood. A 2013 episode featured a round of "Useless Celebrities", a parody of "Pointless Celebrities", and featured Richard Osman as the co-presenter (this was broadcast three years before Osman appeared on the panel). A 2017 episode featured a spoof of "The Chase" which featured Anne Hegerty, one of the Chasers from the show. On one occasion Humph announced that they had a very distinguished actor as a guest who would join in the game of Mornington Crescent. When the game started, after great ceremony, the penultimate player, the last of the panellists, won
I'm Sorry, I'll Read That Again It also may have influenced other spoof-based British radio programmes such as "Radio Active", "On the Hour", "The Sunday Format", "The News Huddlines", and later "Bleak Expectations". Several cast members have since appeared in the radio comedy panel game "I'm Sorry I Haven't a Clue", a spinoff from "ISIRTA" that has outlived it by decades. Tim Brooke-Taylor and Graeme Garden continue as regulars on the show. Episodes of "ISIRTA" have frequently been heard on BBC Radio 4 Extra (available on digital television, DAB digital radio and the web). Listeners in Australia occasionally find "ISIRTA" in the 5.30am vintage comedy timeslot