In the clean up of Krytens circuits, one of the emotions fixed is Guilt, but guilt is one of Kryten's most fundamental behaviour protocols to stop him from going against his human masters.
Rimmer: Like German tourists, the stupid are everywhere.
Rimmer: My handshake's less reliable then a plumber's estimate.
Rimmer : People with breeding do not play 'Popeye the Sailor Man' with a kazoo inserted between their buttocks.
Rimmer: What is wrong with me? I've got the sexual appetite of a mountain lion. No, worse, a first year nursing student.
Rimmer: Permission to look smug, sir.
Captain Hollister : Permission granted.
Kochanski: (after attempting to rape Lister whilst under the influence of the sexual magnetism virus) I don't know what got into me.
Lister: Well. Nothing...sadly.
Rimmer: I've been invited to supper with the movers and the shakers.
Lister: The movers and the shakers? You're going to supper with some removal men and a group of people suffering from Parkinson's Disease?
David Ross, who played the original Kryten in his first episode, was originally thought of to do a voiceover for Robert Llewellyn after Kryten is restored to factory settings and regains the posh British accent used by Ross. Eventually Robert simply put on a fake posh accent.
The final scene where the four crew members start walking down the corridor is a parody of the opening credits of Reservoir Dogs. The song "Little Green Bag" is played in both instances