How can you do any of that stuff on Apple TV? Thought we were stuck with Dolby digital 7.1 and 60hz?
You need apple to support it. The first question is if the hardware supports it. Since it can do 7.1 LPCM my guess is a software update would enable HD audio bitstreaming.
H.265 is supported in the A8 chip. So apple would need to release a software update to enable it.