Other mistake: When Rimmer is doing Lister's memo, there there are only about a few stars visible out the window, which is far too few given the amount of stars shown in exterior space shots of the ship. Additionally, a star suddenly appears in the window. (00:23:15)
Continuity mistake: At The End of the episode, when the future Lister and the babies appear, Rimmer has his arms folded. In the next shot, Rimmer's hands are on his hips. Also, Lister's locks change positions. (00:27:50)
Revealing mistake: When Rimmer runs to Lister after Lister unsuccessfully orders a black coffee, the camera tilts.
Revealing mistake: When the future echo Rimmer leaves the drive room and the actual Rimmer walks in, there is a visible line caused by the split screen effect, done to show two Rimmers onscreen at the same time.
Continuity mistake: When Lister is changing near the start of the episode, there are no stickers on his locker. When he leaves the room, they appear. (00:03:55 - 00:05:10)
Visible crew/equipment: When Lister washes his face in his sleeping quarters, Rimmer is seen off set in the reflection in the fish tank walking past. You can see his uniform and can just make out the H on his forehead. (00:04:40)
Visible crew/equipment: In the flashback scene of Lister and his mates, just after Lister says about brains in jars, a yellow boom mic can be seen at the top of the screen. (00:06:00)
Revealing mistake: When the Cat is pushing the trolly of cigarettes, Rimmer walks past him and bangs his arm against it. (00:09:30)
Continuity mistake: When Lister and Rimmer are talking in their bunks, Lister says 'I've always been crazy about her'. He is looking to his right with his arm in the air, yet in the next shot he is looking down at the floor. (00:12:50)
Other mistake: Rimmer's badge of rank is missing from his short sleeved uniform. All other uniforms in the series have the badge. (00:15:10)
Continuity mistake: The food dispenser in the drive room is now in the place that the door to the Captain's office was in the previous episodes. (00:16:15)
Revealing mistake: The cigarette butts that Lister supposedly tips out of his lager can were obviously in between his hand and the can, and not in the can at all. (00:19:25)
Continuity mistake: When Lister is revising for the exam, he opens a can of beer which sprays foam onto the table, and onto his cigarettes, when he opens it. A few seconds later, the sprayed foam disappears from the table. (00:19:30)
Continuity mistake: When Rimmer is talking to Lister before the exam and says they are friends, Lister replies "When?" Lister has a can of beer on the bunk, with the label facing the camera. Two shots after, the label is suddenly facing away from the camera. A couple of shots after that, the label is suddenly facing the camera again. (00:23:15)
Revealing mistake: When Lister leaves for his exam, he walks through Rimmer. As he does, both Rimmer and Lister become transparent when it should have just been Rimmer. (00:25:50)
Continuity mistake: Lister's rolling pin is dirty with flour when Christine walks in, but when Lister turns around, it's clean. Then it's dirty two seconds later, and then disappears completely after Lister drops the bowl. (00:26:12)
Continuity mistake: When Lister first sees Kochanski his locks are on top of his left shoulder. In the next shot they are gone, then back again when he drops the bowl. (00:26:15)
Continuity mistake: During Lister's exam, he takes the dough and puts it into the bowl while talking to Kochanski. When she turns into Rimmer, Lister is still rolling the dough and it is not in the bowl. (00:27:00 - 00:28:25)
Visible crew/equipment: When Lister is speaking to Kochanski and realises it is actually Rimmer, Kochanski says "it's Kochanski's body, it's Kochanski's voice" and a red boom mic is visible at the top of the screen. (00:27:45)
Continuity mistake: After Rimmer walks out of Lister's exam at The End of the episode, you can see he walks into the sleeping quarters, yet in the next shot he is walking down a corridor. (00:28:30)
Answer: Presumably he does, but it's never been used in any material related to the show. He is the only Cat left (as shown in Series 1), so even if he had once had a name, nobody would know it.
Moose ★