Apple TV Channels
The iOS 12.3 betas also introduce Apple TV Channels. Although technically a part of the overhauled TV app, Channels is actually a new a la carte subscription service that was announced alongside the redesigned app and Apple’s upcoming Apple TV+ original content platform.
Apple TV Channels will allow users to subscribe to and access content from a number of premium TV providers — including CBS All Access, HBO, Showtime and Starz. The big draw is that users can access this content without needing to download or use a separate app. iOS 12.3 already contains free trials and subscription support for Showtime, Starz, Smithsonian and Tastemade.