If you're like me, then you're obsessed with Gravity Falls. It's one of those rare TV shows that's both creepy and charming at the same time, and I can't get enough of it. But what do you do when you've watched all the episodes and are looking for a new show to obsess over? Never fear, because I've got a list of 20 shows like Gravity Falls that will keep you entertained for hours on end.