Character mistake: When Cleveland sees Auntie Mama urinating in the toilet, we can see angle of where she is standing is totally different to where the toilet is. (00:06:50)
Character mistake: When Cleveland enters his house to look for money to repay the casino, he sees the College Fund jar and says "I can't do that to Ramona" but the step daughter's name is Roberta.
Suggested correction: Him calling her by a different name is a joke in the scene, not a mistake. It's intentional.
Harder, Better, Faster, Browner - S2-E1
Character mistake: 21 seconds pass between the time they start to write a song and Kenny says "Done". Cleveland then says it was 15 seconds when it was 21 seconds. (00:11:05)