“I’m only in prison because of my beliefs. I believed the night watchman was asleep.”

A reminder here of Ronnie Barker’s finest hour, as the star of one of the three greatest British sitcoms of all time, Porridge (for the avoidance of doubt, the other two are Dad’s Army and The Office), a show set in a prison that could not possibly be further removed from the nightmare that is Oz. Barker’s cellmate, Godber, incidentally was played by Richard Beckinsale (father of Kate), who died tragically young, but not before he had also starred in Rising Damp, the fourth greatest British sitcom of all time.