I've implemented the AbstractAccountAuthenticator previously in an app for a handheld. I've been working on creating an interface and app experience for Android TV and wanted to be able to handle the user's account in a similar manner. I've created the implementing class and the service as well as adding the service into the manifest but I'm not seeing any account management area similar to the handheld experience. Google Music seems to be using some kind of account management functionality but I cannot verify that it is the same as using the "normal" method.
Does Android TV support this or is it not a feature of the platform and developers should roll their own?