Continuity mistake: At the end when Fletcher returns to his cell after a weekend at home his cell is on the ground floor. All other episodes it's the first floor.
Porridge (1973)
1 continuity mistake in season 1 - chronological order
Starring: Fulton Mackay, Ronnie Barker, Brian Wilde, Richard Beckinsale
Genres: Comedy
Character mistake: "Blanco" Webb refuses parole on the grounds that, under Home Office rules, that would mean he had to admit to murdering his wife, a charge he vehemently denies. However, he accepts a pardon from the Home Office issued on the recommendation of the prison governor. Surely someone like Blanco, a man who quotes Home Office regulations by chapter, paragraph and verse, must know that a pardon is a remission of all punishment for a crime committed by the person being pardoned? By accepting a pardon he is admitting his guilt in exactly the same way as he would have been had he accepted parole.
Mackay: There are only two rules in this prison: 1 - do not write on the walls. 2 - You obey all the rules.
Trivia: There was an American version of this classic UK show. It was titled On the Rocks. The script was reworked in order to make the style of humour suit the audience. It lasted one series before being cancelled in May '76.