Porridge

BBC1, 8.30pm, Friday

Forty years after one Fletcher left prison, Norman Stanley’s grandson Nigel (Kevin Bishop) finds himself doing an extended spell inside.

In this week’s offering, depressed rock star Rob Strange (Phil Cornwell) arrives at the prison, and Fletch (2.0) is assigned to keep an eye on him. However, events take an unexpected turn.

Good support comes from Dave Hill and Mark Bonnar, while director Dominic Brigstocke wrings every last gag from the script.