'Dr. Laura Schlessinger' reaches down Ellen DeGeneres' throat with her left hand, but a shot of Ellen's insides shows Dr. Laura's right hand.
In the fight between Dave Grohl, Billy Corgan, and Courtney Love, there is a dome over the ring with instruments on it. Throughout the fight, the positions of the instruments change.
In the fight between Billy Corgan, Dave Grohl, and Courtney Love, a giant dome is closed over the ring and Mills Lane steps outside just before it closes. Shortly thereafter, he is seen inside the ring to stay "Let's get it on."
In the fight between Charlie Chaplin and Buster Keaton takes place in 1928. Johnny mentions Chaplin is the star of City Lights and that film was not released till 1931.
In the episode where Stacy dies, there is a fight with Gwyneth Paltrow and Winona Ryder. In the fighters' pictures, Winona is seen wearing a green shirt over her white vest, yet throughout the fight, Winona is wearing a red shirt instead