Revealing mistake: In the episode where Denise tries on her wedding dress Jim leaves the room to go and wash up. As he opens the door to leave the living room if you look down towards the front door you can see Dave stood by the door frame waiting for the next scene.
The Royle Family at Christmas - S3-E7
Revealing mistake: When Barbera is shouting at Jim for winning £100 and not sharing it, Cadging Carol starts slicing cake with her spoon, but you can see there is no cake there.
