@pat man: Not to criticize your new topic there, but what you list in the first post is not a real calibration, it's basic setup.

Calibration means using a colorimeter, spectroradiometer or similar to set the grayscale and each primary and secondary color to the reference, which for grayscale is D65 and colors is Rec 709.

Also, one cannot trust gamma being 2.2 even if the TV says so. Gamma is usually very unevenly divided over the grayscale.

That said, doing the basic setup usually improves things a lot and takes you much closer to a calibration, but there is still no way for you to know if what you're watching looks correct.