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 Men Without Women - chronological order
Starring: Fulton Mackay, Ronnie Barker, Brian Wilde, Richard Beckinsale
Genres: Comedy
Factual error: Throughout the whole show Godber, 'Bunny' Warren, McLaren, the Prison Governor and many of the guards refer to Fletcher as a Cockney. He even identifies himself as a Cockney on a number of occasions. However, in several episodes he refers to his upbringing in Muswell Hill and in this episode he refers to his having been born there - and we see his old stamping ground in that episode when he gets a weekend's compassionate leave. Nobody from Muswell Hill would ever refer to himself as a Cockney - Muswell Hill isn't even in East London!
Fletch: I haven't been so put out since my son Raymond crept back into school one night and had a prior peek at the exam papers.
Godber: Did he?
Fletch: Yes he did! And he still didn't bleedin' pass.
Trivia: Fletch has a teenage son by the name of Raymond who was never actually featured in the show. He did turn up in the follow-up, "Going Straight", and was played by Nicholas Lyndhurst, aka Rodney Trotter from Only Fools and Horses.