Jimmy Fallon nails it on the head with this one. And he's completely right: More TV shows need a theme songs. Sure, a jingle eats up 30 seconds of precious scripted screeen time, but would "The Fresh Prince of Bel-Air," "Saved By the Bell," or "The Adventures of Pete and Pete" really have been what they were without that signature song to set the mood? Hollywood: Give us more theme songs!

As a tribute to the lost art of the theme song, Fallon and the leading men from his new NBC show, "Guys with Kids," go through a theme song medley. It's quite entertaining.