The fun-loving '70s pop trio sang and did goofy skits as part of a summer replacement for the 'Sonny & Cher Comedy Hour.' The 1974-75 TV season saw Bill, Mark and Brett return as headliners for a Saturday-morning teenybopper series called 'The Hudson Brothers Razzle Dazzle Show,' which was followed in 1978 by the similarly formatted 'Bonkers!'