Starring: Fulton Mackay, Ronnie Barker, Brian Wilde, Richard Beckinsale
Genres: Comedy
Visible crew/equipment: In "The Desparate Hours", right at the end when Barraclough is in Fletcher's cell, when Fletcher says, "I never heard nothing" you can see the shadow of the boom mic on his face.
Visible crew/equipment: In the governor's office, when Urwin tells Barrowclough that the governor was instrumental in his plan, the overhead mic is in shot at the top of the screen.
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.