I had the LG C6H for a little under a week but had to return it due to some pretty poor uniformity. This uniformity manifested itself as a green bar along the bottom of the screen that was evident during panel tests and normal content.
It was mostly visible if there were reddish, brown, or beige colors on the screen. It would distort the image color, was distracting and frustrating for an over $3,000 product. I chalked it up to uniformity issues and returned it.
I ordered an LG G6 thinking "Well more money = better chances in the panel lottery?" Nope, I was very wrong. This TV also has the EXACT SAME issue in the same spot.
I wrote off it being HDMI related or a particular setting on the TV being used.
I've taken images and dragged them around to the spot. The colors shift to a cold tone as though there is a distinct line where the tint starts.
This tint exists no matter the viewing angle. It is static.
I wonder if it's a certain batch of panels being affected?
It's also likely that I just got extremely unlucky twice 🙃
I'm aware you shouldn't actively look for these and that uniformity is always possible, but having it appear twice in the exact spots? Frustrating. These TVs are not cheap, and returning them is not always easy.
The image linked above is the LG G6 77inch and was the best way I could get it to show clearly through a camera but was in no way edited. I would post more images, but they dont show up as clearly as they do in person. I'm willing to try if people want me to.
TLDR: Sorry for the wall of text. C6H and G6 had bad uniformity in the same spots. Shows up in normal content, unaffected by viewing angles.