I recently change computers. Have Apple TV 1. Connecting to computer using Powerline AV Network (Linksys by Cisco). Installed iTunes on new computer but does not have Apple TV on left side. Cannot syn.
It won't know you have a new iTunes on a new computer.
You need to got to Settings>Computers and remove the old sync library (top entry) and then pair the new iTunes with AppleTV by adding top entry here - you'll get a code to enter in iTunes.
Pairing with a new library wipes your AppleTV clean.
Retrieving data ...