gel said:
Paying for another calibration without trying 4K and HDR first would've been idiotic! Besides it doesn't have the calibration tools to calibrate 4K and HDR right.
I'm not sure about HDR, but I'd be surprised if the Panasonic
4K OLED couldn't be calibrated for 4K?? Mind you, maybe a factory reset as bigboss had been suggesting wouldn't have worked for you, Gel. In his review, Mr Steve Withers says in the "Picture settings out of the box" section, and read the following section also, that the Panasonic 4K OLED was so accurate out of the box that calibration was unlikely to make much improvement.
https://www.avforums.com/review/panasonic-tx-65cz952b-cz952-ultra-hd-4k-oled-tv-review.11988