Continuity mistake: When Richie is telling the other 3 guys to go to the corner, he still has his hands on the wheels of his chair. But when the shot changes and Richie says "if you need the toilet then put your hand up", his arms are crossed around his waist.
Continuity mistake: When Richie falls off the ladder, it's apparent from the way he falls that he lands on his front (you just see his leg pop into shot) and that his head would be pointing towards the camera. However, instantly in the next shot we see him on his back with his head towards the wall.
Revealing mistake: When they are leading Richie to the cupboard while playing postman's knock, Dave Hedgehog puts his hands on the wall. The whole stage wall shakes when he touches it.
Visible crew/equipment: When Eddie says "Pork" to Natasha, Richie jumps up and shouts at him. When he says "She is my fiancee", you can see a boom mic reflected in the Elvis Presley photo.
Continuity mistake: When Ritchie yells "Aah. Aah. Aah." after the table lands on his toes, the shot zooms out. When Eddie hits him again, he is able to move away from the table. But we never see the table moving the final distance downwards towards the floor (implying he's pulled his feet out from under it), meaning his toes were never under the table at that point, only in the short scene beforehand.
Continuity mistake: After Eddie has performed checkmate on Richie, Richie punches Eddie who falls over. Eddie gets back up and lifts the table up. The chess board, ashtray, bottle of brown sauce and other things on the table disappear completely in the next shot showing the table land on Richie's feet.
Revealing mistake: During a few scenes after Richie's finger has been taped back on at an extreme angle, you can see Rick Mayall's real finger bent underneath it. This is most visible after his finger gets slammed in the window: look carefully after the window is opened.
Revealing mistake: Even though you hear it ticking, the second hand on the clock in Eddies' room doesn't move.
Bottom's Out - S2-E6
Continuity mistake: When Richie first gets his head in the fire, the flames become massive. Yet in the next shot, the flames have all died down and all that is left is smoke.
Continuity mistake: Eddie says that the fairground music reminded him of his dads funeral. But in many of the other episodes Eddie says that he has no idea who his father was.
Revealing mistake: When Richie says "Don't you dare call me overweight young man" and tips the ferris wheel cart over, you can see that it is a dummy representing Richie.