A 60-minute special celebrating the funniest sitcoms of the 1970s - from hostile hoteliers to comedy convicts - with inside stories, hilarious moments and secrets from the shows. With a host of celebrity guests, we find out how Michael Crawford performed all his own slapstick stunts in Some Mothers Do 'Ave 'Em, how the cast of The Good Life bonded over pea pod burgundy, how Fawlty Towers became a huge hit, and how a real-life affair inspired Carla Lane to write suburban sitcom Butterflies. The show also features stand-out moments from Last Of The Summer Wine, The Liver Birds, The Rise And Fall Of Reginald Perrin, Steptoe And Son, and Dad's Army.