The Kryten mask as well as the costume was updated for Series 10.
Although they are mentioned frequently during the series, this is the only episode other than Time Slides and Polymorph in which one of Rimmer's three brothers - Howard - appears.
A scene was shot in which Rimmer tries to trick the Medi-Bot (Kerry Shale) into believing that he has dyslexia, but it was deleted.
We meet Rimmer's brother Howard. Howard first appeared in Red Dwarf: Polymorph (1989) (TV Episode), which he is seen on home movie which Rimmer is watching, which a young Howard and their other brothers John and Frank tying up young Rimmer and pouring a can of ants on his face.
Although Howard is Arnold's older brother, Mark Dexter is thirteen years younger than Chris Barrie.