Quartz: The fifth season of “Game of Thrones,” which premieres on April 12 in the United States, will be broadcast simultaneously around the planet. The simulcast, HBO hopes, will cut down on illegal downloads of the popular fantasy show, which is the most-pirated television show in the world. Eliminating the window between its first airing in the U.S. and the rest of the world “is one step we’ve taken to mitigate piracy.”