You need HDMI Control set to ON or nothing will pass through on standby. I have the same problem, but my XBox 360 and HTPC will pass through fine. It is only my Dish 722 that will not. The thing that drives me crazy is that it was passing through for a couple months then after a power outage, I could never get it to work again. I can get it working if I switch the inputs after the Xbox or htpc starts passing through and use those lines, or if unplug the Dish 722, turn on the TV and then plug back in the Dish, but as soon as a shut the TV, I get the same one second of audio. When it was working it would do one second audio, stop one second and then continue and it would be fine the rest of the day. Mine passes through also no matter TV or AMP selection under HDMI Audio out. After trying Denon email and phone support, I gave up and I just ran a separate HDMI cable from the Dish directly to the Panasonic plasma.