Revealing mistake: Starbug and Blue Midget wobble on a number of occasions during the chase. (00:23:25)
Emohawk - Polymorph II - S6-E4
Revealing mistake: When the Gelfs release the Emohawk, it is thrown into the air and it flies away. However, if you look at the third Gelf you can see the shadow of the Emohawk puppet as it falls to the floor. (00:17:30)
Revealing mistake: During the scene in the space station's dining room, when Craig Charles is making a speech explaining that they should escape, he stands up and pours himself a glass of Bucks Fizz. Craig fills the glass too soon (half way through the speach) and must realise, as he pours the drink back into the pitcher, and then begins filling his glass again. (00:20:20)
The Last Day - S3-E6
Revealing mistake: You can tell Robert Llewellyn is reading his lines when Kryten receives the computer chip. He is looking much lower than the chip in his hand and it was obviously quite a complicated piece of dialogue to remember. (00:12:35)
Quarantine - S5-E4
Revealing mistake: As pointed out by Danny John Jules on the DVD Commentary, during the 'Feckles, Heckles, Hackles, Schmeckles' argument, Cat pushes his face right against Kryten's, leaving a brown makeup smear on Kryten's forehead. The mark is gone in the next shot. (00:19:45)
Revealing mistake: The spike that kills Pete Tranter's sister is visible before she reacts to it, just below her elbow. (00:21:20)
Revealing mistake: In the drive room when Lister kicks the vending machine after he finds out he's going to die, you can see the shadow of the machine wobbling as if it were lightweight. (00:20:20)
Revealing mistake: In the observation dome, the borders of the blue screen used to project the image of space behind Lister and Rimmer can be seen around the dome. (00:09:55)
Revealing mistake: Rimmer is able to move the swivel chair in this episode despite being a hologram. (00:24:35)
Stasis Leak - S2-E4
Revealing mistake: When Lister, the Cat and Rimmer are stood in the shower and the Cat keeps saying 'What is it?' he turns to Rimmer and brushes against his tie throughout the scene. (00:10:05)
Revealing mistake: Near The End of the episode, Kryten and his employer are seen arguing in supposedly backwards English. However, when you watch the episode how the people of earth would see it on the second DVD, Kryten and his employer aren't speaking English, they are just speaking plain gobbeldy-gook, even although when you see the people of Earth talking on the DVD they speak correctly. (00:22:30)
Revealing mistake: At The End of the episode when Ace takes off in the ejector seat, a black cable can be seen lifting the chair up. (00:27:55)
Emohawk - Polymorph II - S6-E4
Revealing mistake: Both Ace and the Emohawk get sprayed with the liquid Dyllinium, yet only the Emohawk becomes paralysed. (00:26:55)
Suggested correction: Ace is a hologram. Even though he is hard light, he cannot be harmed. Which is why he was able to jump on the grenade and not be harmed. So the gas spray wouldn't have harmed him either.
Revealing mistake: When Lister types Starbug's co-ordinates for the distress call, Lister's fingers do not touch the keyboard. (00:03:00)