Family Guy Viewer Mail #1 - S3-E21
Continuity mistake: During the Scooby Doo send-up, there are red doors all along the corridor, but when Peter is talking about Istanbul, the red doors are gone. (00:18:35)
Family Guy Viewer Mail #1 - S3-E21
Continuity mistake: When the 'Knight' and the 'Ghost' bump into each other in the corridor, the armour and bedsheet fall on the floor, but in the next shot, the armour and bedsheet are gone. (00:18:40)
Family Guy Viewer Mail #1 - S3-E21
Continuity mistake: When Lois is saying "We each seem to have acquired superpowers.", her size in relation to the chair in front of her changes between shots.
Family Guy Viewer Mail #1 - S3-E21
Continuity mistake: Just before the genie comes out of the bottle, Peter's hands move from holding the bottle and the opener away from each other, to opening the bottle with the opener, between shots.
Family Guy Viewer Mail #1 - S3-E21
Continuity mistake: When Peter is on the couch talking to Catherine, the amount of wine in his glass keeps changing from shot to shot. He takes a drink and the amount stays the same.
When You Wish Upon a Weinstein - S3-E22
Continuity mistake: When Max hangs up the phone, the transmitter (the part you speak into that's nearest the cord) is on the right. A few shots later when we see the phone again, it's on the left side.