I've already given one possible reason, why that might not work, in post #10:
"It might adjust the television, to work with the Duo2, but then normal television pictures, or DVD viewing, might be compromised, which is why most images, in fact all that I've tried, have an option, in the menu, to adjust most picture options."
The VU+ Duo 2 is a nice receiver, with many attributes, including the ability to alter its display, to get the best picture possible, without the need to adjust your television, and ruin the picture for other connected devices.