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.
Correction: However, it's possible for the radio to have holographic controls as well, perhaps reacting to the presence of a light bee, since in an emergency situation, a hologram may be the only one uninjured enough to send a distress signal.
Corrected entry: Throughout this episode writing is backwards. Why, in a backwards universe, would writing be backwards? Surely it would be the correct way around, just that the people in this universe would read it backwards.
Timeslides - S3-E5
Corrected entry: Want to know why Rimmer is alive at The End of 'Timeslides'? Here's a theory. Rimmer as a child sees himself from the future visit him to offer advice. He later works out that this was himself from the future. Later in the events of 'Stasis Leak', Rimmer is visited again by his future self. Because of his childhood experience, now Rimmer does not panic but takes his future self's advice and goes into Stasis, therefore surviving the radiation leak.
Correction: Sorry, but pet theories are not valid trivia.
Correction: According to Doug Naylor in the Re-Mastered edition of this episode, the second Polymorph hid in Lister's underpants drawers and died of starvation due to its stupidity.