Peter Cook and Dudley Moore were a major part of the new British comedy era in the '60s and '70s. Their great partnership was formed when the pair wrote and conceived "Not Only... But Also". Half of the charm of the show is the pair's ad-libs and the laughter they fought to hold back as they tried to make each other crack up. These six episodes have been compiled from what remains in the BBC archive of the original two series. This classic comedy featured some of the cleverest sketches ever to appear on British television and included terrific guest appearances such as John Lennon.