Apple just made your TV watching much easier… if you subscribe to the right services, that is. After dropping some hints in November, Apple has activated its promised single sign-on feature for Apple TV and iOS users in the US, but only for a handful of offerings. DirecTV, Dish and cord-cutter service Sling TV are the highlights among providers. Only some channel-specific apps can use SSO as well: A&E, Bravo, NBC, Syfy and USA are among the choices, and the option isnt alway…Read more