Continuity mistake: Cleveland smashes a bottle to defend himself with. In the wide shot, all of the smashed glass disappears off the ground. (00:04:55)
Continuity mistake: Cleveland drops a spoon Junior throws at him. It disappears a few seconds later. (00:04:55)
Continuity mistake: Cleveland takes the photo album off his dad and his dad gives him the dirty look. Cleveland drops the album but disappears in the wide shot of people fighting. (00:04:45)
Continuity mistake: Roberta goes to leave the house and she starts a tug of war with Donna. They are standing next to the door in this shot, but standing next to a table about 15 seconds after. (00:04:45)
Continuity mistake: Cleveland's beer bottle suddenly appears in his hand in the shot after he says "Poor, fat Kendra".
Other mistake: When Terry is saying he doesn't like being strangled, he doesn't have a reflection in the van's wing mirror. (00:14:30)
Audio problem: When Kenny begins rapping, you can actually see him open his mouth but nothing's actually coming out. (00:16:05)
You're the Best Man, Cleveland Brown - S1-E21
Other mistake: The clock on the nightstand doesn't have any hands on it when Donna is talking about women loving bad boys. (00:07:40)
Cleveland Jr. Cherry Bomb - S1-E5
Audio problem: When the audience is applauding Cleveland, applause is heard but no-one's hands are moving. (00:04:05)
Continuity mistake: When Cleveland and the Child Services agent are hiding behind the couch during the gunfight, the bullet holes in the wall next to them change position between shots. (00:18:45)
Continuity mistake: At the start of the meeting, Ernie is wearing no socks. But when Lester says "I ain't leaving with out my son", Ernie suddenly is wearing socks. (00:17:15)
Other mistake: Lester's house is directly across the street from Cleveland's. However, when the Child Services agent runs out of Lester's house with Ernie, he runs at 2 o'clock direction (which would be towards Holt's house), but instead ends up in front of Cleveland's house, which is in a 12 o'clock direction. (00:11:20)
Continuity mistake: Ms. Eck shows Roberta her grade and she says it's a C minus. However, the paper shows the grade is an E minus. (00:04:00)
Continuity mistake: When Cleveland Junior walks into the locker room to see his locker has been broken into, the door behind him is open. Two shots later, the door is now closed. (00:15:05)
Continuity mistake: In the 1984 flashback, when Cleveland chases Wally, Wally trips and drops his computer. When this happens, the computer goes off screen. But in the next shot, all the damage from the computer is right next to him. (00:01:40)
Other mistake: Cleveland shoots the living room ceiling, but the position of the hole is much further to the right from where the gun was pointed. (00:15:35)
Continuity mistake: Francis the Possum scratches Kendra on her face. Yet when we next see her, her face is unscratched. (00:13:55)
Other mistake: When Cleveland and Cleveland Junior start singing the Black History Month song, the second hand on the clock doesn't move along with every second. (00:00:30)
Continuity mistake: Black History Month begins when the time on the clock reads 12:00. When the shot ends, the second hand on the clock shows 4 seconds. But 9 seconds later, the clock now shows 44 seconds. (00:00:15)
Da Doggone Daddy-Daughter Dinner Dance - S1-E2
Continuity mistake: When Cleveland drops Cleveland Junior off at school, Junior gets out at the back of the car and he is taller than the car's height. In the next shot, he is standing at the front of the car without enough time to move there and he is smaller than the car's height. (00:01:40)
Answer: In the episode "A Rodent Like This" Rallo discovers that Cleveland Jr. is actually a secret agent who is tracking down Tim, who is actually criminal. Jr. reveals that in order to get close he had to eliminate the real Cleveland Jr. luckily Cleveland doesn't pay attention so it was easy. Whether or not this is canon or not depends on the writers.