Continuity mistake: In the opening scene where Tommy and Jude are composing a song, Jude's head is turned to the side in a wide shot. In the following close-up shot, her head is staring straight up and not turned to the side.
Continuity mistake: In the cake song, Stingy puts in chocolate but never picks up the bowl. A few shots later, he is now holding the bowl.
Continuity mistake: In two episodes aired consecutively on CBBC on April 7th 2004, The "DON'T WALK/WALK" sign moves from one side of the crossing to the other and changes colour. At the end of the episode where Bernie has a lucky watch, the sign is to the right of the main door to the apartment building and has orange text. At the start of the episode where Bernie finds a cat, the sign is to the left, and red.