Used Karma - S1-E3
Continuity mistake: At the end of the show as Bertram scares the kids, he sits down to watch his movie. In the first shot you can see that Mr Kipling is not present, but in the next shot he is.
Other mistake: In the end of the title sequence, Jessie walks outside. Before exiting, you can see that she is just a little bit taller than the doorway, but her head passes through the frame as she walks forwards.