I just hooked up my sony 55inch 1080i wega and denon 3808ci. I played a couple of disks at 480p 720p and 1080i. When I set oppo to 720p and 1080i looked less sharp in background images. Wondering is the Oppo and the denon scaling at the same time? Is there a way to let oppo scale and not the denon or vice a versa?

Also I noticed a few audio settings on DVD. Again I rather let denon control audio, any recommend settings to pass audio to Denon?