Ah, I thought you meant like dark as far as subject matter. For those, I watch them over and over again.

For darkly lit series, I usually just close the blinds and I'm good!

I watch at night and turn down the lights in the room to match.

I play with gamma and contrast settings on my device or the contrast and brightness in mphc, or the gamma settings on madVR. I really don't like leaving settings on auto, but I try to keep it as dark as possible with some detail visible in the shadows, and make sure the bright scenes don't clip the highlights. Sometimes its a back and forth from scene to scene.

I skip them. If the film-makers want me to guess what's going on on-screen, then I refuse to be their audience.

I find "HDR" content on streaming services (Netflix in particular) looks far more crushed than SDR content streamed from my Plex server.

I'm unsure if it's to do with the bitrate limits of streaming services, but it's not an issue I've run into since switching to Plex a couple years ago.

'Dolby Vision' content specifically always looks awful on Netflix, whereas the same content looks fine on the same TV when it's coming via Plex.

I watch at night and dark scenes look pretty good to me, lots of detail. Also on OLED (LG evo G3), using Filmmaker mode or ‘Cinema’ in case of DV.