Interesting, I registered to provide some mux dumps and ask if hevc h.265 support could be added and found this thread.
I'll give it a try, there are a couple of UHD test transmissions running that I know, one on Astra 1 at 19.2E and another on Hotbird 13E, I've been recording using mux dumps so far but a proper scheduled recording would be wonderful.
Also FYI I have a 4Ghz devils canyon i7 and it plays the BBC Ultra HD World Cup transmissions at ~ 60% cpu with the Kodi (XBMC) 14 nightly builds, running on Ubuntu 12.0.4.5 64bit. Commonwealth Games transmissions at ~35% cpu on all cores, I have a small overclock to 4.6Ghz but maybe this isn't necessary any more.
Andre