The number of MVPDs and programmers that are supporting Apple’s single sign-on feature for Apple TV and iOS has grown since its sparse beta debut last month, but buy-in from those providers is still hit and miss as the feature gets rolled out commercially.
Per the latest support page for Apple’s SSO feature, MVPD support is limited to CenturyLink (Prism TV), DirecTV, Dish Network and Sling TV, GTA, GVTC, Hawaiian Telecom, Hotwire, and MetroCast.
A much larger batch of authenticated TV Everywhere apps from the programmers support the component, but device support is not uniform:
iOS only: A&E, History, Lifetime,
tvOS only: Bravo Now, E! Now, HBC, Syfy Now, Telemundo Now, USA Now
iOS and tvOS: Hallmark Channel Everywhere, Watch HGTV, Watch Food Network, Watch Cooking Channel, Watch DIY, and Watch Travel Channel.
Apple is also gearing up to introduce its new “TV” app for iPhones and iPads that will attempt to aggregate and unify access to TV shows and movies offered by individual apps.