J.K. Rowling reads to children at the 2010 White House Egg Roll. According to a new essay, her own experiences as a young student helped inform the Harry Potter character Dolores Umbridge. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

A new digital platform called Simpsons World features all 25 years of episodes. FX says it is trying to cater to both old-fashioned TV fans and people who watch shows on other devices. FOX hide caption

itoggle caption FOX