The Roku listing of available streaming channels does not list Apple TV, yet the Apple TV logo shows up in various Roku advertisements/pages. I have Apple TV subscription and would like to add it to my Roku profile so I can access Apple while in travel status.
What's your Roku model number displayed under Settings->System->About? The Apple TV app isn't supported on all Roku devices. If it isn't available when you search "Streaming channels" or you can't add it from here then you may not have a compatible device linked to your Roku account (or you're not in a supported region).
How to use the Apple TV channel on your Roku® streaming device | Official Roku Support
