Watch Will Smith and Jimmy Fallon Perform the History of TV Theme Songs

The Late Night TV landscape shifted significantly a few years ago with the departures of David Letterman, Jay Leno, and Jon Stewart, and for a hot minute there Jimmy Fallon was king. The Tonight Show host found a way to make Late Night TV relevant in the digital age with goofy games and fun celebrity interactions. But as the political mood soured and Fallon kept playing his games, viewers began shifting their attention to folks like Stephen Colbert and Seth Meyers who were aggressively commentin...