When Lister visits Kochanski's grave, a picture of Mel Bibby can be seen. Bibby was the show's production designer. He died in 2002.
Rimmer says he will need "Classic Car Monthly or something" to read while the others are fighting the sea monster. Chris Barrie, who plays Rimmer, is a classic car enthusiast.
Danny John-Jules, with a blue sock on his hand, provide the movement for the skutter's head. His hand was digitally edited out in post production and replaced with a CGI skutter.
The psi-scan used by Kryten is actually a Sonin 10075 Laser Targeting Range Finder, with the words 'BIT CRAP' superimposed on the display.
The third feature-length episode in Red Dwarf, after two feature length episodes in series 8 ('Back In The Red' and 'Pete')