The title is based on the cliché used by detectives, policemen and those chasing an individual when they quickly leave in an automobile. The person jumps into another automobile and yells: "Follow that car!"
Teaser and Main Title are SWITCHED. The Main Title sequence starts this episode followed by the teaser consisting of scenes from part one with Samantha providing the recap narration. After the commercial break, the Writer/Director card starts the first act as usual.
Leach figures Samantha is like "Glenda, the Good Witch of the West". In the books Glenda was the Witch of the South; in the 1939 movie she was the Witch of the North. In both books and the movie the Witch of the West was the evil one.