The first episode, "New Faces, Old Hands", was aired on BBC1 on 5 September 1974, attracting a television audience of over 16 million, and receiving positive reviews from critics. Two further series were commissioned, as well as two Christmas special episodes. The final episode of "Porridge", "Final Stretch", was broadcast on 25 March 1977. The producers and the writers were keen to make more episodes, but Barker was wary of being "stuck with a character" and also wanted to move on to other projects, so the series came to a close. Barker did, however, reprise his role as Fletcher in a sequel, "Going Straight", which ran for one series in 1978. A feature-length version of the show was made in 1979 and in 2003 a follow-up mockumentary, "", was aired.