iPhone XS and XS Max in silver, space gray, and gold.
Apple Begins Promoting 'Live Tune-In' Feature on New Apple TV Splash Screen
To use Live Tune-In, Apple TV users can speak into the Siri Remote using commands like "Watch CBS," or specifically ask to "Watch ESPN live." Other features on the new splash screen of the Apple TV include updates that were released in March's tvOS 9.2 update -- including Folders and Bluetooth keyboard support -- but Apple is just now beginning to promote the Live Tune-In ability as an option for those who watch live channels often on the platform.
Some live streaming apps do require separate subscriptions to be able to watch live TV in the first place, so the CBS app won't work for those who don't have a CBS All Access account. Other live streaming-supported apps that don't appear to incorporate Live Tune-In yet include ABC and Food Network.