what computers are authorized on apple tv
How can I tell WHAT computers are authorized? I can see 5 are authorized... but I can't see WHAT computers are authorized so I can't deauthorize one to add a new one...
Question marked as
Computers with DRM’ed content downloads from the iTunes Store should be authorized. Other computers do not need this authorization.
You can configure the authorization on|off setting on each computer, for just that computer, in the iTunes application, or on modern Macs in the TV app or Music app. Or you can de-authorize all computers with the matching Apple ID account, then re-activate authorization for just the computers that need it again.
It is possible that computers that you no longer have, are included in the count, if you never de-authorized those. That is when “de-authorize all computers” comes in handy.
Authorize or deauthorize your computer for iTunes Store purchases - Apple Support