Having the right theme song is crucial for any TV show. It's the thing that you instantly recognise and associate with the series forever. Take The Addams Family's double snap, The X Files' spooky synth-whistle, and the deep cello of the Game of Thrones orchestral theme.
While there are plenty of catchy theme tunes that are written specifically for the show, there are certain series that use an already existing song to set the tone and mood for the forthcoming content.
