Continuity mistake: At the beginning of the "When Keeping It Real Goes Wrong" Sketch, the main character is introduced as "Brenda Johnson". At the end of the skit, she is referred to as "Brenda Rounds." This may be intentional, given where she is at the end of the sketch.
Revealing mistake: During the dinner scene where Dave is thinking about Arsenio Hall eating cheese, Arsenio starts complaining about how good the cheese is. After punching one guy, he goes up to another and slaps him in the face. When he slaps him you can see he misses the guy's face by a good inch or so.