Just to clarify, I did not mean that the Apple TV cannot send undecoded DD over HDMI through the HD621. I meant that that route does not, to my knowledge, provide anything extra soundwise vs. via digital optical. Either way, the decoding is done in the G68 and there is no upsampling possible until the speakers.

If I have misunderstood the capabilities of the Apple TV or the HD621 I am happy to be corrected as I could benefit from the knowledge.

"Wonderful perfect quadraphonic sound with distortion levels so low as to make a brave man weep" - Prostetnic Vogon Jeltz of the Galactic Hyperspace Planning Council