With Digits, developers can get rid of the need to type out email addresses and passwords when logging into tvOS apps. In place of all that hunting and pecking, Digits-powered apps will give users a unique code and prompt them to enter it at digits.com/appletv on their phone or computer. It’s essentially the same idea that Facebook proposed last week when it announced its own SDK for tvOS, and while it’s still a bit wonky, it will definitely save users some time — especially those with long email addresses and passwords.
The Apple TV should realistically just show a pop up on the user’s iPhone, and ask for permission use his/her login data from there. Whatever Apple should or can do, they could do better than what’s currently implemented.