Apple announced this back in January.
https://www.apple.com/newsroom/2020/01/apple-rings-in-new-era-of-services-following-landmark-year/#mn_e
From that article...
“The Apple TV app brings together the different ways to discover and watch shows, movies and more in one app, and is available on iPhone, iPad, Apple TV, Mac, iPod touch, select Samsung smart TVs, and Amazon Fire TV and Roku devices, and will be available on LG, Sony and VIZIO smart TVs later this year. The Apple TV app now offers over 30 Apple TV channels — direct subscriptions to premium video services so customers can watch both online and offline, ad-free and on demand, all in one app.”