Continuity mistake: Stewie and Brian are having breakfast at the hotel. When they spot the hot air balloon, the plates on the table disappear between shots. (00:11:50)
Peter, Peter, Caviar Eater - S2-E1
Continuity mistake: When Peter and Brian are lounging in the pool, Peter's beer can appears on his stomach between shots. (00:09:30)
Continuity mistake: When Lois starts crying in the supermarket, the boxes on the top shelf change colour between shots. (00:16:40)
Continuity mistake: When Peter is saying how he hated the last few years of MASH, Mr. Weed just appears behind him in a shot change. (00:01:35)
Continuity mistake: When Stewie is acting like a ninja to get his gun back it is in a cupboard with 2 shelves. Yet when the gun is lifting him up there's only one. (00:09:40)
Continuity mistake: When the black knight pushes Peter's face into the table, there are cream-coloured serviettes (napkins) laid out, but in the next shot, there are blue serviettes. (00:16:45)
A Very Special Family Guy Freakin' Christmas - S3-E16
Continuity mistake: When Santa tells Stewie to smile for the camera, there is a white pompom below his beard, but in the next shot, it is gone. (00:12:25)
Continuity mistake: When Spooner St. is announced as the parade's winner, Lois and Loretta hug. In the next shot, they are both waving their hands in the air.
Continuity mistake: In the first shot of Peter and Francis at the baseball game, there is a girl in a green dress sitting behind them. In the next shot there is a guy in a cream shirt sitting behind them. (00:06:40)
The Tan Aquatic with Steve Zissou - S5-E11
Continuity mistake: At the very beginning of the episode, when we first see Peter and co. at the golfcourse, Peter and Quagmire get a lot closer between shots. (00:00:30)
Continuity mistake: When Stewie is building with blocks, you first see a pyramid with three blocks on the bottom and two on the top. The shot changes, and he puts two more on the top, near the edge. When the shot changes again, suddenly there are five blocks on the bottom, six on the second layer, and two on the top near the middle. The letters and pictures are also all different. (00:09:50)
The Thin White Line (1) - S3-E1
Continuity mistake: When Brian is giving his speech at the end, it shows two policemen. The one on the left has a brown drink and the one on the right has a yellow drink. But in the next shot, the one on the right has a yellow drink and the one on the left has a clear drink. (00:21:05)
I Never Met the Dead Man - S1-E2
Continuity mistake: When Lois is feeding Stewie broccoli at the beginning in one shot the plate disappears from his table, and then in the next shot it is there with a fork next to it. (00:01:35)
Ready, Willing, and Disabled - S3-E15
Continuity mistake: When Peter is convincing Joe to do something with his life, they are listening to the news and beer cans are everywhere. Then the news reporter says, "Better watch out for that skateboard." After he slips, look around the room: there are no beer cans anymore.
A Very Special Family Guy Freakin' Christmas - S3-E16
Continuity mistake: Brian gets the fur on his hands burned off by the kitchen fire, but when Lois goes crazy and goes into the living room, the rest follow her and the screen zooms out. When that happens Brian's fur is back on his hands.
A Very Special Family Guy Freakin' Christmas - S3-E16
Continuity mistake: When Stewie contemplates that there is a hidden camera in the Santa ornament, the size of the red bauble next to the Santa changes between shots. (00:05:10)
Continuity mistake: When we first see Carter and the Griffins at the Newport racetrack, Peter's hands are on his thighs, but in the next shot, he is holding a cigar in his mouth. (00:11:10)
Continuity mistake: In the scene where Peter and Lois are "getting dressed", the candles in the background switch from having candle holders to not having candle holders.
He's Too Sexy for His Fat - S2-E17
Continuity mistake: Stewie gets progressively fat throughout the entire episode, but in the last scene he is thin again.
Continuity mistake: Stewie takes the card from the predictor machine in his left hand but on close up it's in his right hand. (00:04:30)
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