Once you've done above:

Ensure you do this for either your Target Input (current device)  or Common (for all devices).

And Scene Select to : General

Settings:

Reality Creation : Auto (see if this helps)

Film Mode : OFF

Advanced Settings:

Auto light limiter : LOW

Live colour : LOW
Detail Enhancer : LOW (or even OFF)

Edge Enhancer : LOW (or even OFF)

Other than that, and the eco settings - I cannot think of any other setting or reason why you would get so much 'noise' on the TV.