Apple has quietly enabled its promised Single Sign On feature on its back-end servers for users running the iOS 10.2 or tvOS 10.1 betas. A new TV Providers option began appearing recently for U.S. users of the Apple TV and iOS betas. On the Apple TV, the setting is found under Accounts in the Settings app, while on the iPhone and iPad it can be found in the main Settings app, below the settings for social networks such as Facebook, Twitter, Flickr,…
