The lines you are talking about is called vertical banding. It is also referred as DSE (Dirty Screen Effect). It's an issue that is inherent with all flat screen LED/LCD panels from all brands. It is caused by the manufacturing process. Nobody has figured out a way to prevent it. It is cometely random on the severity. Some are worse than others. You can play the lottery game, but don't ever expect to get a perfect panel as they do not exist. Vizio does have their own set of issues like all brands do, but DSE is not unique to the company so blaming them for it is naive.Mine went back to costco.ca right away as the thin lines visible in many scenes like 37:40 into the Aquaman 4k disc made it unusable to me.
Too bad, because it looked and seemed to work flawlessly otherwise.......crazy picture quality. If they come out with lines on their tv's this year I will never consider them again. I am expecting to see the same lines......but will likely try the 85" because that is the only 85 that has the high performance features and spec's that I want. The regular 2019 65" P I had also went back with the line issue. My 2016 P65-C1 does not have lines.
Vizio, please release new 2020/21 "models"...........NOT a 2020/21 "Line-Up".