Audio problem: When Kenny begins rapping, you can actually see him open his mouth but nothing's actually coming out. (00:16:05)
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)
Audio problem: In the final scene when Cleveland says to Terry "I'm gonna get paid and you're gonna get laid", they both start cheering. But when it comes to the wide shot, Terry is still cheering but his mouth isn't moving. (00:19:55)
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.