Porridge (TV series) 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 was aired. The prison exterior in the title sequence is the old St Albans prison gatehouse and HM Prison Maidstone, which was also featured in the BBC comedy series "Birds of a Feather" (HMP Slade
Porridge (TV series) "Porridge", a slang term for prison; Barker, Clement and La Frenais actually came up with the same title independently of each other. In their research, Clement and La Frenais spoke to Jonathan Marshall, a former prisoner who had written a book, "How to Survive in the Nick", and he advised them about prison slang, dress and routines. Struggling to think up plots and humour for such a downbeat, confined environment, a particular phrase used by Marshall – "little victories" – struck a chord and convinced them to base the series on an inmate who made his daily life in prison