I bought an Apple TV today solely for mirroring as my tv already has netflix built in. I have 55inch sony led. No matter what settings i try i get boarders on all sides. Any 1080p material i play lags. Also there seems to be a bug, sometimes when i have mirroring turned on, anywhere i click it clicks to the right of it, hard to explain. Say i click a icon on my desktop, it actually acts like i clicked on the icon 3 to the right of it. I really hope you get true full screen soon. Anyone been able to get 10.8 mac to Apple tv without any boarders?