I’ve thought of this... all 4 of these 65” inch panels the yellowish/ brown picture frame inside the panel - I wonder if that matches up to extending a 55” panel to 65” ? It’s roughly a 2-3” thick line.... one thing that shot that theory down in my head was one of the Best Buy floor models was 55” and had the line up the left side.... what’s funny. If the upload didn’t kill it, look at the color I calibrated on this thing, that’s a 720p cable channel image upscaled to 4k.... like I said above, if the series 5 had better panels and some more overall brightness in hdr - for movies it would be the superior tcl for 2020. The gradient is much better than the series 6 and so is the local dimming for some odd reason - The black crush and blooming the series 6 suffers from is not there.....the 60hz panel doesn’t stutter as much for movies. I honestly think they nerfed the hdr brightness and use the rejected series 6 panels... with no 8 series this year, the 6 is the flagship and they want to push that mini led, vrr etc....
whatever it’s is, I’m convinced they are manufacturing defects. Yours is a 55” ? Would you mind taking some pics of the sides with content That is light colored. Game of thrones season 1 episodes 1 is great for this, the first 10 minutes... when need chips the guys head off the skybox will show everything and anything of there is bad stuff...
Side note - watching football panel 4 has the worse vertical banding of them all, on a punt or a long pass when the camera has to pan fast it comes across as lighter areas that stick out, it’s the clean parts of the screen between the jail bars causing this, the series 6 also suffer this, noticed a few questions about football on their thread. One guy even ask how I just stated it.