I am using a new Apple TV, JVC A/V Receiver and a Samsung 1080p LCD TV. All are connected with HDMI cables (I have tried my expensive HDMI cables as well as the $19 Apple HDMI cable).
This is what I have been able to work out:
I can start the system up to allow the Apple TV to play HDCP content. To do this, I:
-Turn off the Apple TV
-Turn on the TV
-Wait until the TV is on and displaying
-Turn on the JVC Receiver and put it on the correct source (Apple TV source)
-Wait until the JVC Receiver is completely up (about 4 seconds)
-Turn the Apple TV back on
After this, HDCP content works.
When I turn off the Receiver, HDCP content stops playing, and will not play again.
I can remedy that by repeating the above, OR
-Turn off Receiver
-Unplug Apple TV HDMI from Receiver
-Turn on Receiver
-Wait until Receiver is completely up
-Plug Apple TV HDMI in to the back
After this, the HDCP content works again.
From what I have read, there is a handshake between ATV and the device it is connected to. I imagine what I am doing is ultimately forcing the handshake to happen in a way the Apple TV needs.
All in all, I'm a little ****** that I have to go through this every time I power down my home theater system. My other option is to wire the Apple TV directly to the TV, and use the optical audio out to the receiver. Not really wanting to do that, though...
Any help in this area from Apple or otherwise would be greatly appreciated.