Unwanted Guest: Part One - S5-E1
Continuity mistake: When Joey is sleeping on the couch at the start of the episode, the table beside him has numerous items on it. There is a red Pringles can next to a blue paper box, a purple box behind the blue box, and a crisps bag beside the purple box. A few seconds later, when Joey sits up, the Pringles can is now ahead of the blue box, and the crisps bag is now ahead of the purple box. (00:01:15)