Corrected entry: In the episode 'Timeslides,' after the crew return from giving young Lister the Tension Sheet, Lister, The Cat, and Kryten disappear because he never joined the crew. Rimmer should also disappear or be replaced by McIntyre, because his hologram was created for the purpose of keeping Lister sane.
Corrected entry: In the scene where Lister is so desperate with hunger that he eats the only thing still available (a can of dog food), Craig Charles (who plays Lister) was not acting. He really DID eat it (it was cat food, which apparently "looked better", but the difference is minimal). Not surprisingly, this scene was completed in only one take...
Corrected entry: In the episode "Polymorph", the 'punchline' at the end of the episode is that the crew of Red Dwarf think they're safe, because they've killed the polymorph creature. But the 'plot twist' is that there was a SECOND polymorph on board Red Dwarf - and the last we see of it is when the Polymorph takes on the appearance of Lister and grins to the camera. But it is never explained what became of this second polymorph. For all we know, it could still be lurking on board.
Corrected entry: Rimmer is seen pressing a button before speaking into a microphone to send out a distress message. But Rimmer is supposed to be a hologram, an intangible being...and as such, can't touch things. HE is not capable of touching things until the Red Dwarf crew meet Legion in Series VI - then Legion upgrades Rimmer with a "Hard-Light" holographic drive, making him a solid being at last.