Peter, Peter, Caviar Eater - S2-E1
Continuity mistake: When Stewie is asking the waiter to cut his food (and drink), his eggs disappear between shots. (00:10:20)
Continuity mistake: In the end of the episode whilst the families are eating lunch at the picnic table there is a lot of plates of food and glasses on the table. Towards the end of the scene Brian says "I guess some mysteries are better left unsolved", there is a wide shot after he says this and every plate and glass from the table has disappeared. (00:21:25)
Death Lives - S3-E6
Continuity mistake: In the scene where Peter gets a ride from Cleveland, there is no one behind the wheel of the car while Peter is walking up to the front door.
The Kiss Seen Around the World - S3-E8
Continuity mistake: Brian is looking at board games. Before he spots his favourite (in the wide shot), there is a game of Snakes & Ladders to the left of Chinese Checkers. In the close-up, S&L is gone, and CC has moved up closer to Brian. (00:00:50)
One If By Clam, Two If By Sea - S3-E4
Other mistake: When the cops burst into the house we see the action on a TV as shown by the Quahog News logo in bottom left. However on the TV in the living room the logo is missing. It should be there as well. (00:12:45)
Continuity mistake: Brian breaks his left leg at the race. Next scene the cast is on his right leg.
Stewie, Chris & Brian's Excellent Adventure - S13-E7
Factual error: When Brian and Stewie are trying to get on The Titanic, the fourth funnel is letting out smoke. The Titanic's fourth funnel was not functional. (00:12:05)
Continuity mistake: When Peter walks away from Brian with the hula hoop around his waist, he runs into the stereo, knocking a vase of flowers on the floor, shattering the vase. Next shot shows the mess cleaned up without anyone even cleaning it. (00:04:45)
A Picture Is Worth 1,000 Bucks - S2-E11
Revealing mistake: When the hotel employee gives Peter the key to the room, the man's moustache turns yellow for a second.
Brian: Portrait of a Dog - S1-E7
Continuity mistake: Brian's black collar briefly turns back to his red one when he's looking at the bird combust. (00:05:56)
Revealing mistake: Peter's right eye overlaps his nose when Lois reminds him about getting drunk off communion wine at church. This mistake was later referenced in "Back to the Pilot." (00:02:50)
Something, Something, Something, Dark Side - S8-E20
Continuity mistake: When escaping Hoth, in the Falcon are Han, Leia and Chewbacca. But when the Falcon takes off, C-3PO appears out of nowhere. (00:18:55)
Road to the North Pole - S9-E7
Continuity mistake: At the first house, the bag in the sleigh with all the presents in is ripped open when it falls off the roof. However, when Stewie and Brian leave the house, there is no tear in the bag at all. (00:32:55 - 00:36:45)
Factual error: In all the scenes where Peter wrecks Cleveland's house and Cleveland is in the bath, the tub always slides easily out of the house with Cleveland in it and onto the ground. There are no pipes or any kind of plumbing visible on the bathroom floor where the tub should have been connected.
Continuity mistake: At the start of Peter's fight with the Big Chicken, Peter is slammed into the wall, which cracks. After Peter gets up, the wall behind him is perfectly fine again. (00:07:05)
Peter, Peter, Caviar Eater - S2-E1
Continuity mistake: When Peter has become cultured and is talking to Coco and Jonathon, Jonathon's suit changes colour from brownish-green to grey. (00:14:00)
Continuity mistake: As Stewie is about to eat his brisket (just before he throws it at Meg) he is cutting part of it off. Just as he cuts through the shot cuts and you can see the brisket is now back in one whole piece. You can also see the mashed potatoes change from white to green.
Continuity mistake: In the scene where the family are singing an African song, they all point their arms up to the ceiling yet in the next shot, Lois's arms are immediately cupped and pointed downwards - you don't see her moving her arms to that position.
Continuity mistake: When they are at the football game and Meg and the flag girls come out, and after Lois says, "Oh Peter, isn't she beautiful?", Peter's hot dog is yellow and has ketchup. But after he throws it on the field, it is back to normal. (00:07:30)
Continuity mistake: When Peter first goes down into the basement, there is no railing on the stairs. One suddenly appears later in the same scene. (00:08:40)
Answer: Mort is Jewish, and Walt Disney was said to be antisemitic. So it would make sense in a Disney universe all the inhabitants would share his supposed beliefs.
MasterOfAll