I don't really understand fingernail art. To be honest, it kind of skeeves me out. It's unnatural; there's something strangely Wicca about it. Maybe it's just me, but the idea of spending $100 on something that might break off in your boyfriend's clavicle next week gives me the heebs. But when the fingernail art is inspired by TV shows, it makes me slightly less squeamish, especially when those television shows are as awesome as these are (I'm particularly fond of the "Doctor Who" art).
Most of the images in the following gallery came from Flavorwire's collection (and you can see there entire post, which includes a lot of not-awesome shows like "Glee"), but where indicated, the fingernail art comes from elsewhere. Also, yes: I searched all morning for Greendale fingernail art, but the Internet let me down on this one.
It's Always Sunny in Philadelphia
Game of Thrones
Sons of Anarchy
Saved by the Bell
Parks and Recreation
The Fresh Prince of Bel Air
Pee Wee's Playhouse