Sounds like a great TV. I like the idea of a built-in test pattern generator and calibration system. Trouble is that not all Blu-ray and 4K discs maintain a common standard. My Panasonic 55FZ950U 4K OLED has one of its picture modes "tuned to Hollywood Standard characteristics" but because discs vary so much in various parameters I find that I am forever varying settings away from "standard". The most common variations between discs are Brightness (black level), contrast, color saturation, sharpness, and Gamma. Fortunately I am able to adjust these quickly in the menu.
I can understand the reason for a "standard" setting if one is producing video but I wonder how useful it is with the variables mentioned above. (Except perhaps to see just how far from "standard" a disc actually is.)
Nevertheless, I am happy to see that Panasonic are continuing with their improvements and additions.