Continuity mistake: Kendra is dealt a Queen of clubs and a red seven of diamonds. When the four of clubs has been dealt, the other cards are now a black seven of diamonds and a Jack of hearts. (00:16:50 - 00:17:40)
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)
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)
Trivia: The living room of the TV show "Dat's What I Was Tellin' You Before" Roberta was watching in the cutaway is the same living room as the Smith house has in American Dad. Another cartoon created by Seth MacFarlane just like this one. (00:09:40)
Trivia: The Cider Glider is a real invention. (00:17:35)
Trivia: When the scuba diver dives out the window, he makes a very noticeable Wilhelm scream. (00:14:10)
Tim the Bear: Arianna. Robert. I walked in on them. They were playing Hide The Salman Rushdie.
Cleveland Brown: I don't even need to buy bullets, cause I'm sweating them.
Cleveland Brown Jr.: Are you staying at your deadbeat dad's too?
Roberta Tubbs: Please, if I wanted to breathe toxic mold and get flea bites I'd date Zach Galifianakis.
Zach Galifianakis: It's gonna happen one way or the other.
Question: Why does Cleveland Jr look different to how he did in Family Guy?
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.