The National Lampoon Radio Hour was a comedy radio show which was created, produced and written by staff from National Lampoon magazine. The show ran weekly, for a little over a year, from November 17, 1973 to December 28, 1974. Originally an hour in length, after 13 weeks it was cut down to half-an-hour due to the difficulty of putting together the very considerable amount of material required for a one-hour show. The show was created by Michael O'Donoghue and producer/engineer Bob Tischler. When O'Donoghue left, later producers included Sean Kelly, Brian McConnachie and John Belushi.