I am looking at purchasing a new amp ready for a 3d tv. I have been looking at the sony str dg820 but am a little confused. If I connect a 3d blu ray player via hdmi and then hdmi to tv will this work ? I also have sky box but understand this does not carry 5.1 over hdmi so will have to use seperate optical. If this reciever does not work this way are there any that will around same price mark ? Mike.