When FXX aired a marathon of The Simpsons this September, they shattered ratings records with the 18-49-year-old audience. Now the channel has released Simpsons World, a streaming app dedicated to the show, which includes lots of features beyond access to the entire Simpsons series. Users can look at the popularity of each episode, watch “clips that rock,” and a “rarities” section of video that even die-hard fans might not have seen. (Slate)