I have a pro Infuse Abo and it worked fine on my first Apple TV, but not on the second. There is a message on the screen to update my version to pro, but I already have one…
Sorry for the ignorance, what is an Abo?
Sorry. Abo —> subscription
First make sure that you are signed to the same iCloud account and apple id on both ATVs. If you have that and it still isn’t seeing the Pro version go to the settings where the subscriptions are and click on restore.