Episode One - S1-E1
Corrected entry: When Craig David is at the hair dresser's, after he has had his rows done, in the mirror in the background you can see the camera crew reflected.
Continuity mistake: In the Michael Jackson "Psychotherapy Day" sketch, Michael is leaning forward (or to the side depending on how you look at it) with his arm on the desk but in the closeups he is sitting up, arms by his side.
Trivia: Some masks are reused. For example the masks for Peter Parker, Trisha and Junan Pingpong were originally Leo DiCaprio, Michelle Williams and Question Rowland.
Correction: The 'Craig David' sketch is meant to be a documentary, so it does not matter if the cameras are visible.