I've watched Silo season 2 and it is basically impossible to watch it during the day. Only at night, with brightness cranked up to 100%.
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.
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’ !!