Jam is a British experimental black comedysketch show, created, co-written, produced and directed by Chris Morris. It was broadcast on Channel 4 between 23 March and 27 April 2000. It was based on the earlier BBC Radio 1show, Blue Jam, and consists of an unconnected series of disturbing, often perverse and surreal sketches, unfolding over an ambient soundtrack. Many of the sketches re-used the original radio soundtracks with the actors lip-synching their lines, an unusual technique which added to the programme’s unsettling atmosphere, and featured unorthodox use of visual effects and sound manipulation.