Porridge (TV series) himself as the judge, a character role subsequently played by Maurice Denham in two episodes of the third series. The theme music for the closing credits was written by Max Harris, who had also written the theme music for numerous other TV shows, including "The Strange World of Gurney Slade" and "Doomwatch", and would go on to write the theme for "Open All Hours", another of the Seven of One pilots. The cheery theme was "deliberately at variance with the dour comedy" and given a music hall feel by Harris because of the lead character's Cockney origins. Following the pilot
Porridge (TV series) situation comedy pilot episodes. The most successful would then be made into a full series. One of the episodes was "Prisoner and Escort", written by Dick Clement and Ian La Frenais (who appear in one episode) about a newly sentenced habitual criminal, Norman Stanley Fletcher (Barker), being escorted to prison by two warders: the timid Mr. Barrowclough (Brian Wilde) and the stern Mr. Mackay (Fulton Mackay). It was broadcast on 1 April 1973 on BBC Two. Despite Barker's initial preference for another of the pilots, a sitcom about a Welsh gambling addict, "Prisoner and Escort" was selected. It was renamed