Rtings blamed a lot of that on the overly aggressive local dimming. They had some pretty good demos on their review video. I've almost bought an 8 series twice during their sales, but until I'm sure they get it fixed, I'm out. The increased number of zones and the mini LED's should be better at this, not worse. Looks like the kind of thing that should have been addressed with a firmware update already, but hopefully thy'll get it right soon.