
Brian Goes Back to College - S4-E15
Continuity mistake: When Stewie runs in to film Brian after he got fired, Lois has her arms crossed. When we see it from the camera's POV, her arms are in completely differently positions. (00:07:10)

The Cleveland-Loretta Quagmire - S4-E5
Continuity mistake: During the cut away to Superman and the good trying to attack him, Superman is on a ledge around 5ft in height however this instantly becomes a mere step. (00:08:30)

The Cleveland-Loretta Quagmire - S4-E5
Continuity mistake: When Peter is discussing them taking away his CPR card, they are in front of an orange house, but when when they hear Loretta they are now to the side of it. (00:05:40)

Continuity mistake: We see an inmate say "I hear there is a lot of buzz about this new band". When he does there is an overhead shot showing that a lot of chairs are empty and that there is no group of people sat together but as the camera changes, the gaps have gone and seats are filled. (00:10:40)

Continuity mistake: As the inmates start to riot they all have chairs to sit down. But the shot changes and all but 3 of the chairs have disappeared. (00:11:40)

8 Simple Rules for Buying My Teenage Daughter - S4-E8
Continuity mistake: When Lois is interviewing the first babysitters her clipboard disappears. (00:07:15)

8 Simple Rules for Buying My Teenage Daughter - S4-E8
Continuity mistake: Just as Lois walks in asking who wants chowder, Chris' position changes completely in an instant. (00:06:10)

Continuity mistake: When Tom Tucker is hit by Peter, his (Tom) left foot is facing his right knee. When the shot moves to include the hooker his left foot is now facing away from his right knee. (00:11:10)
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