The first step was to see which with the Panasonic's colour temperature presets was one of the most precise. Like most TVs, the Panasonic has a number of color temperature alternatives labeled as variants of "Great" and "Heat," plus "Neutral." The market normal for colour temperature is 6500K or D65. http://beckettnniea.ivasdesign.com/22937525/top-guidelines-of-calibration-software