You've probably heard by now the insanely awesome theory about how all Pixar movies happen in the same universe. While that's a really good theory it's not the first nor the most incredible theory based on a well known series or movie. As time goes by more and more theories like that one come out and while a big majority of them are astonishingly bad sometimes you encounter one or two that are worth mentioning. This isn't a list for any of those theories. While many of these theories are quite dumb some of them manage to raise your interest by proposing very interesting situations for the series. Some of them were proven wrong, some of them are still valid since some of them are from series that are still on the air right now. Feel free to read without any problem since I tried to include those theories that didn't involve any kind of spoilers for many of the recent shows nowadays, so if you don't want to spoil the series finale of Breaking Bad or some of the most important twists in Game of Thrones there's nothing to worry about here.