@randy1911 said this also happened with the 2019 8-Series, where actual production dimming zones exceeded pre-production numbers.That is what I would suspect too, but don’t know for sure. But then that also would imply that TCL already redesigned the OD ZERO miniled matrix configuration between CES and now? If the zone counts have changed (Number cited in TCL press releases and presentations, vs what people are seeing on 85 Q900A). Seems odd to me...?
You would have to ask him how, why. Or his inside source.
I know they're always working on improvements, but at some point they have to draw a line in the sand and call it this year's specs vs next year. Otherwise they would never ship any TVs, just keep improving in some lab...