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
Radio comedy are WSRN's "Audience of Two", Garrison Keillor's work on Minnesota Public Radio: "A Prairie Home Companion" and "Comedy College", and NPR's "Car Talk", a comedy show thinly disguised as car advice, and "Wait Wait... Don't Tell Me!". Shows featuring comedic music are also popular; one of the better known national comedy music programs is the long-running weekly program hosted by Dr. Demento, and several other local stations (mostly college radio, freeform and eclectic formats) have similar programs. Several networks program 24 hours a day of stand-up comedy routines; several channels on the Sirius XM Radio platforms focus on this format,