Plot hole: In the episode 'Backwards' most of the things that happen on 'Backwards Earth' are correct, except, of course, in reverse. But there is an exception: in the scene in the Cafe, when the waitress comes to 'dirty' the table, she tips a box of trash on the table. If you play this scene backwards, the trash leaps from the table into the box. Even on a 'backwards earth' I can't believe that trash spontaneously leaps about...

Continuity: At the start of "Backwards", there is a spoof "Star Wars" type caption, which spools up the screen very quickly. Too quickly to be read in fact...which may explain why few people have noticed that the last line of the caption "And now the Story Continuums..." is written TWICE

Continuity: In the forest, Lister and the Cat take a poster off a tree. They then show it to the man who gives them a lift. The poster is different to the one in the forest.

Continuity: When Kryten is doing his driving test, as soon as we see Rimmer & Kryten in the cockpit you can see the wire attached to Chris Barrie behind him, next to the aerial on his hat, going vertically out the top of the frame. When it comes to the actual ejector seat gag, put it in frame-advance and you will clearly see the wire again for a couple of frames. You can tell it's not the aerial because Chris is looking up at the time meaning the aerial on his hat would now br horizontal (and hidden by his head).

Visible crew/equipment: When Kryten and Rimmer find the Nodnol sign, a large boom mic can be seen above their heads.

Revealing: Lister mouths the Cat's line, "Your gajungas will suddenly rise back into your body, and the next thing you know you're singing soprano in the school choir."

Revealing: At the end of the episode, the shot with the taxi has been reversed to show the number plate backwards. It has also changed everything else in the shot, most notably, the cat's outfit. In the next scene they have been flipped back to normal.

Visible crew/equipment: After leaving Starbug, the Cat says, "What's the matter?" There is a boom mic visible at the top right of the screen. (This may not be visible on some TVs).

Continuity: When Lister gets sucked through the window, one of the men that 'catches' him disappears when the camera changes.

Revealing: 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.

Plot hole: If everything goes backwards, shouldn't Kryten and Rimmer have got fired, done their job and then got hired? Rimmer & Kryten discovered that everything was backwards in the cafe earlier in the episode. At the club they did their act and then got fired. Put this 'forwards' and it becomes wrong.

Revealing: During the fight, there is a man in a 'Flash Gordon' t-shirt with the logo forwards.

Continuity: At the end of the episode, when the Cat says, 'I've forgotten something', watch the extra in the white t-shirt. He puts a pint to his mouth, and when the shot changes, it is gone.

Revealing: At the start in the cockpit of Starbug, the green screen behind Lister is visible instead of the painted starfield that should be there.

Other: When the meteor hits Starbug, there are no stars outside the front of the ship at all.

Revealing: When Lister burns Rimmer's money, you can see they are Italian Lire notes.

Continuity: When Lister puts the snapped guitar into the fire, the broken piece of the neck end is sticking out of the top. When Rimmer comes in, the neck of the guitar is now upside down.

Visible crew/equipment: If you look closely when the camera follows Lister (in the scene just before the meteor crashes onto Starbug) you can actually see the edge of the set and some studio lights.

Revealing: When Lister cuts out the guitar from the trunk, the edges are black. When Lister snaps the guitar in two, you can see the wood is a different colour inside, meaning the edges of the cut out had been painted previously.

Plot hole: Right after the shrinking boxers scene, Kryten says the small boxers are missing from the bunk, but you can see them right in front of him.