The link below says:"Note: Not all devices support on-device transactions, so you may not be able to buy, rent, or subscribe to shows or channels directly. However, you can sign in with your Apple ID to watch items you’ve already purchased, rented, or subscribed to on other devices."https://support.apple.com/en-gb/guide/tvapp/atvb438d254c/1.0/web/1.0AFAIK this is because some non-Apple devices don't support the security Apple require to support financial transactions, such as renting a movie.As it says, if you rent or buy a movie on the iPad, you should be able to view it on the TV app, assuming you are logged on using the same user ID on both.
Michael Robinson ● 1638d