Jimmy Fallon Sings the Best Medley of Classic TV Show Themes Songs You'll Hear Today 30.81K Neetzan Zimmerman 09/26/12 07:35AM Filed to: Medley Medley Late Night With Jimmy Fallon Theme Songs Television Lamenting the slow decay of TV show theme songs, Jimmy Fallon, with a little help from the cast from NBC's new sitcom Guys with Kids, attempts to revive the American institution with a lengthy walk down Classic Theme Song Lane.[LNwJF via Tastefully Offensive]