I thought I read a description of this somewhere here but couldn't find it again. I'm running iTunes from an iMac. My problem is I (clearly) don't want the same content on both the phone and the AppleTV. The phone I had first so I presently have selected only the things for the phone as a default when I open iTunes. When I hooked up the AppleTV, I guess it defaulted to automatic sync, but it seemed to want to do its own thing. I'm not sure exactly what criteria it was using to choose what to sync, so eventually I shut down the autosync - but then for some reason it just wiped everything off the AppleTV. Now I'm afraid to try sync-ing again without having a better understanding how best to do this. Any help would be appreciated, thanks!