If you're running the 975 video in the "Native" mode (which is how I do mine for all high definition sources) the Hue, Saturation, etc. do nothing. In Native mode the 975 will pass through the video unchanged and allow you to adjust the TV to get the best color settings.

Are you running native or autoscale on your video inputs?
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975/7075/SMS-1
Aperion Verus Grand Towers & Bookshelves, Verus Forte Center, Infinity Surrounds, Ultra-X12
Oppo BDP-203, XBOX360, Xbox One
LG 65" OLED
RR2150 w/Klipsch SCR-2