Watching "The Expanse" on Prime. Didn't like it at first, but it's growing on me.
I barely hung on in the first season...but it got better and better as it went. I just now finished the 3rd season, and yes...it is/was a truly magnificent show. I like that another poster mentioned firefly. Both had magnificent character depth and great humanity written into the parts. That's no easy task.
Watching it as well. I like the grittiness of it. I've gotten behind on the book series though.