Have you considered trying to repair it? Darkened screen sounds like failed LED lighting strips and those can be replaced. Watch a few videos on the subject to get an idea of what you are getting into. I did it on a vizio TV and it took me about an hour all told.

I started collecting DVD/BR again a year or so ago. Streaming services are no longer worth it for me, and I like the extras that come on discs. Thirft stores are a gold mine of cheap movies anf TV shows.

Robot. Always robot.