Revealing mistake: When Lois says to become friends with the bullies and earn their trust, she raises her arm. When she does the animation is messed and and he arm merges with the table. (00:10:00)
Continuity mistake: When the Flag team are walking out on to the field, the leader of the band is by the 50 line. Camera changes and he's much further back now. (00:07:00)
Continuity mistake: When Neil approaches Meg the first time we see her in her uniform, the colour of the trim on the top of her boots change from gold to red. (00:05:10)
Continuity mistake: In the clam we see Joe's drink just as Peter sits down, and there is no foam on the pint. Camera changes and the foam has appeared. (00:02:40)
Continuity mistake: Brian chucks a snowball at Stewie who avoids the snowball resulting in it hitting the tree behind him. Brian throws a second one and Stewie ducks again, but when he ducks, the previous snowball on the tree has gone. (00:01:20)
One If By Clam, Two If By Sea - S3-E4
Continuity mistake: Once Eliza has started speaking properly, we see Stewie place the cow toy down and it has 2 very clear black prints in place. When the camera changes, one of the black spots has vanished. (00:16:40)
One If By Clam, Two If By Sea - S3-E4
Continuity mistake: In the court room the chair that Lois tries to sit on disappears when the English Gent is saying about going to the party. (00:13:30)
One If By Clam, Two If By Sea - S3-E4
Continuity mistake: In the courtroom we see there are some papers and a pen on the desk in front of the guys. When they walk off however, the paper and pens have vanished. (00:13:30)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: When the bosses are discussing sending Peter to Washington, all the paper on the desk disappears instantly. (00:12:30)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: When waiting for Peter to get home from work, there is a plate with a bone on in front of Brian, When Brian asks how Peter can afford lobster, the pate has changed into a proper meal. (00:05:30)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: The bosses chuck a dog out of the window and shoot it like a clay pigeon, When they do there is a chair at the table with its back to the window. In the camera angle from the window, this chair has disappeared. (00:05:30)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: El-Dorado places a snooker table and table tennis table in the toy factory among other things. When we see the bosses up in the office, the snooker table has disappeared. (00:05:00)
Mr. Griffin Goes to Washington - S3-E3
Other mistake: In the cutaway to Mike Tyson during the baseball game, people in the crowd are missing their faces. (00:03:00)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: At the baseball game, there is a man behind Peter in a red top, with a man to his left. This man turns into a woman for some shots. (00:03:10)
Mr. Griffin Goes to Washington - S3-E3
Continuity mistake: When Peter catches the ball from in front of the sick kid, his buttons on his Boston jacket swap sides. (00:02:30)
Brian Does Hollywood (2) - S3-E2
Continuity mistake: When in the restaurant Brian has some green stuff on his plate next to his steak. However in the close ups of Brian, this has disappeared leaving just the steak. (00:12:20)
Brian Does Hollywood (2) - S3-E2
Continuity mistake: When Stewie is interrogating Kermit, there is a yellow sun on his bed spread that is near the op with a noticeable gap underneath it towards the bottom of the cover. This sun then moves to the bottom of the cover in the following shots. The little planet that is represented by a dot in the long shot also switches sides. (00:04:30)
The Thin White Line (1) - S3-E1
Continuity mistake: When Brian finds Peter in the rehab centre, he has 7 beers in a pack on the bed beside him in a row of 4 and a row of 3. When the camera changes, the row of 4 which is on the outside has been reduced to 3 cans. The direction on which they are facing also changes from across the bed side to side to along the bed top to bottom. (00:16:35)
The Thin White Line (1) - S3-E1
Continuity mistake: When Brian corners the elderly gentleman and drops the contents of his case they change position on the floor between the long and close ups. (00:12:30)
The Thin White Line (1) - S3-E1
Continuity mistake: After Brian has shown of his skills at home we see him with his head out of the cop car. The car has blue and yellow lights on top but when it cuts to a close up a red section has appeared. (00:07:30)
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