A new splash screen on the fourth-generation Apple TV informs users of a new “Live Tune-In” feature, which allows viewers to jump directly into the live streams of select apps, via their Siri Remote.
… The company is specifically promoting CBS, ESPN, and Disney XD as apps that support Live Tune-In, but it hasn’t disclosed yet how soon other apps that have live channel functionality will gain the new feature as well.
Apple TV viewers simply speak a command into their Siri Remote, such as “watch ESPN Live,” or “Watch Disney XD,” to view the live stream for that channel.
A number of the apps that support live streaming, such as the CBS app, will require a separate subscription to work. MacRumors reports that just because an app supports live streaming, it won’t necessarily work with Live Tune-In. Apps such as ABC and Food Network don’t as yet support the new feature.
The Live Tune-In feature apparently came as part of the March tvOS 9.2 update, but Apple is just now pushing it to users. Other new features of tvOS 9.2 include support for Bluetooth keyboards, new Siri dictation features, and the ability to place apps into categorized folders.