[OtinG]

I read on MacRumors that tvOS 15 allows you to use Face ID or Touch ID on an iPhone or iPad to sign in to apps on your ATV. That is nice update to have. Some ATV apps already allow authentication by asking if you want to sign in by using your iPhone or iPad to enter your login information, but only if the corresponding app is already installed and activated on your iThingie. In that case, I usually get a message box on my iPhone or iPad asking me to allow the authentication of the app on my ATV 4K.

This will save a lot of time since you won’t have to lookup the password or spend time typing it into the ATV. Even if you use your iThingie to type into the ATV, you still had to know your password, or look it up. People like myself who use unique, long passwords will certainly find this a time saver. It is certainly a time saver on the iPhones and iPads, and now they have extended it to the ATV. Obviously the ATV doesn’t have a way of directly verifying you by facial recognition or fingerprint, but your iThingie does, so now we will be able use it activation of apps.

They could also accomplish this if they add a fingerprint scanner to the ATV remote, and add password functionality to tvOS like that in iOS, but I doubt they will ever do that.