Is it safe to say that when I buy the app on 1 ATV the other ATV gets the app at no additional charge, correct? They are both signed in with the same Apple ID. In addition, is the iPhone app extra or is that free when you buy the ATV app? Thanks!
One purchase of Channels for Apple TV will work on all your Apple TVs (signed into same Apple ID or using Family Sharing).
Channels for iPhone/iPad is a separate purchase, and works on all your iPhone/iPad devices.
as usual, thanks for your quick response!