Brand new 2012 Mac mini (10.8.2) and a 3rd generation Apple TV. When I play a video and enable "Airplay" the sound is played through the Apple TV, but the video appears on my computer.
I have tried this with Quicktime Player, VLC, Safari playing YoutTube videos, Movist,
I can send airplay video and audio from my ipad and iphone.
Should work according to:
How are you enabling Airplay?
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