Corrected entry: Ace states that Kryten is not waterproof, yet he must have got wet in the episode Backwards in series 3, as the ship crashes underwater, and soon after Kryten and Rimmer are in a lifeboat sailing for shore. How did they get our of the sunken ship without getting wet? He also drinks water in the "Backwards" episode, and again in series 6, in the episode "Legion".
Corrected entry: During Rimmer's appeal against his 9,000 year sentence for second degree murder, Kryten's entire defence strategy is proving that Rimmer is "a jumped-up grease monkey" who would never be trusted with critically important repairs on the Red Dwarf - that is, the drive plate. The court accepts this and Rimmer is released. The trouble is, Rimmer WAS trusted with the drive plate repairs and he WAS responsible for the crew's death. Kryten's defence is wrong, and on the court's terms the charge is correct and Rimmer is guilty. It's not as if Rimmer and Kryten believe Rimmer is too dumb to be guilty - they know the facts of the case and they are under 'polygraphic surveillance'. Their opinions don't count, the facts stand, and Rimmer is doomed.
Corrected entry: Some of the episode 'Meltdown' must have been filmed on a cold day - you can see Rimmer's breath condensing in the cold air. But surely Rimmer is a hologram - and holograms don't breathe (because they don't need to). Obviously they couldn't ask Chris Barrie (Rimmer) to stop breathing during filming...
Corrected entry: In the episode "D.N.A.", Lister tells Kryten he is an "enlightened 23rd Century guy", but if the clock in the episode 'Stasis Leak' is anything to go by, Lister was in fact born in the 21st Century. [If you accept that Lister is 25, then the year 2077 minus 25 means he was born in or about 2052]. The DNA Modifier is also incorrect in this episode by saying that Lister's species is "male, 23rd century human". This totally contradicts the entire premise of the episode 'Ouroboros' which shows the infant Lister being abandoned in The Aigburth Arms, Liverpool, in November 2155 (=22nd Century).