Confidence and Paranoia - S1-E5
Continuity mistake: At the start of the episode, when Lister is watching the film, keep an eye on his milkshake. One moment the glass is on the table, then when the camera cuts, he's drinking from it. (00:02:25)
Continuity mistake: Just before Lister cuts himself shaving, he is shaving away from himself. The camera changes and he is shaving in the oposite direction. (00:13:00)
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)
Confidence and Paranoia - S1-E5
Continuity mistake: When Lister is watching the film at the start of the episode, he says 'would you let me watch the film' to Holly. His arm is gesturing to Holly, but in the next shot he is picking up chips from his lap. (00:02:50)
Continuity mistake: When we see Rimmer's Death video, the atomic blast pushes him into the Captain's office. However, in "The End," Holly indicates that the two piles of dust next to each other in the centre of the drive room are Captain Hollister and Rimmer. (00:10:00)
Continuity mistake: The sign above the stasis booth in this episode is different than what it was in the previous episode, "The End". (00:14:00)
Continuity mistake: Both Rimmer and Lister go through a door on the right hand side of the captain's office which wasn't there in the previous episode. (00:10:20)
Continuity mistake: When the Cat's future echo says, "I think I lost my tooth," he is at The End of the corridoor. When the present Cat say it, he is just leaving the sleeping quarters. (00:16:30 - 00:22:25)
Continuity mistake: When Lister tips his socks onto the floor, he throws the bin behind him, near the bunkbeds. But when he picks them up again, the bin has moved over in front and to the right of him. (00:08:20)
Continuity mistake: When the Captain is making his speech for George McIntyre, he takes his hand out of his pocket and touches his glass. In the next shot, his hand is back in his pocket again. (00:10:35)
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)
Continuity mistake: When Lister and the Cat are talking to the original Rimmer in the cinema, the new Rimmer enters and argues with the original. The original Rimmer makes hand puppets, while the new Rimmer sits at the front. When Lister does the ippy-dippy, the Rimmers have swapped places. The new Rimmer says that he was there first, without complaint from the original. (00:23:30)
Continuity mistake: When Rimmer and Lister leave their sleeping quarters, there are two pictures on the wall between the door and the window and a canister on the wall beside the beds. When they are next in the room the items are gone, and at The End of the episode they have all returned. (00:09:20 - 00:12:50)
Continuity mistake: After Rimmer and Lister argue about the pod, Rimmer walks off and Lister steps into the observation room. As Lister steps in, his locks are over his left shoulder, then in the next shot they are over his right shoulder. (00:14:05)
Answer: The cello is a large four-stringed instrument, which, when it is played, stands vertically on the floor between the player's legs (assuming they are seated). If it is to grow as large as the other instuments mentioned will, it would require a rather unseemly lack of femininity to be able to encompass it with the legs.
Rooster of Doom