My LG oled will go darker by itself during prolonged dark scenes, its not noticeable (other than that you can't see anything and you're not sure if its correct or not) until you get to a slightly brighter scene, can get it to stop for a bit by opening a menu.
Could barely tell what was going on, everything was so dark, and black crush killed it completely, making it look blocky and janky.
I watched it again a few years later, on max brightness, sitting in the dark, and I got more of what was going on, but it still looked terrible. One day I'll watch the 'UHD' 4k HDR version and maybe I'll be able to see what it was supposed to look like.
Problem is, you’ll have to find a high bitrate version. Whatever they streamed on HBO the day of release was really shitty bitrate which crushes detail in detail-starved scenes like these
I tried a load of different versions including blu-ray rips IIRC, and it was all just as bad.
When I last rewatched it (early pandemic), as far as I could tell at the time there was no HDR version available, which I assume would fix it by being able to represent more variation in the darker colours.
I might hunt one down at some point as it does exist now. Though it still wouldn’t make season 8 ‘good’ !!
