I still watch cartoons
I'm 18 so I feel I'm probably too old for them, but I can't help but The Marvelous Misadventures of Flapjack is currently one of my favorite shows and I also often catch myself watching Chowder, Foster's Home for Imaginary Friends, and a few others.
Of course, I still watch shows that are targeted for people my age, but I can't help but feel a little immature because I like kids' shows.