Holly's increasing fallibility results in him being replaced by the backup computer, Queeg 500, named after a character from The Caine Mutiny by Herman Wouk. The crew, initially pleased at the efficiency of their new AI, soon grow dissatisfied, as Queeg requires them to work hard and follow the Company's regulations to the letter. Holly, prevailed upon by the crew to return, challenges Queeg to a chess match to determine which of them will run Red Dwarf. Queeg wins easily, and declares that Holly is to be wiped immediately from the ship's systems. However, Holly returns, and explains that the Queeg incident was merely an elaborate April Fool's Day prank.Trivia
- Charles Augins, who played Queeg, was also the choreographer for the "Tongue Tied" segment in "Parallel Universe", and was featured in the music video that accompanied Danny John-Jules's commercial release of the song.
- Rimmer's story about Porky as a ring leader of a gang intent on eating him for survival draws similarities to Lord of the Flies.
- "Inflatable Ingrid", only mentioned in this episode, is for some unknown reason changed to "Rachel" in later episodes.
- Rimmer, when he quotes Holly, doesn't quote him word for word the first time. Rimmer says "no need to panic everyone, I've got it in hand". Holly says it the other way.
- Despite the Cat not being a registered person aboard Red Dwarf, as stated in Quarantine, his personality is recorded on a hologramatic-data.
- When the meteor hits the ship at the start of the episode, Rimmer, being a hologram, should fall through the table, rather than fall on top of it.
- Holly singing as he appears to be erased is a homage to HAL 9000's demise in Arthur C. Clarke's Space Odyssey saga.
