Complex sentence: The ground was also featured in a 1975 episode of BBC sitcom "Porridge", "Happy Release", in which prisoners Fletcher and Blanco gain revenge on a fellow prisoner, Norris, by giving him a fake treasure map before his release.
Split into simpler sentences: The ground was also featured in a 1975 episode of BBC sitcom "Porridge". During the episode "Happy Release", prisoners Fletcher and Blanco gain revenge on a fellow prisoner, Norris, by giving him a fake treasure map before his release.