I've Got You Under My Skin/In a Jam/Junk in the Trunk - S1-E12
Other mistake: In a Jam: The wire to Cuddles' guitar gets pulled out of the jack while he is performing. Four shots later, there is a wire at the bottom right of the screen, and the bottom of it is slightly cut off. Additionally, in the same shot, a small part of a wire appears at the bottom left for one frame. (00:11:52)