12 Monkeys and Dark, in that exact order, are my favorite shows of all time, and I'm not specifically talking about the Time Travel aspect that I obviously love.
When I watched the last episode of 12 Monkeys, I had existential crisis, and needed time to get myself together and be able to rewatch.
I didn't know I needed this show, but once I had it, it's part of me now and I can't see this world not having it.