An alternative to self-hosting and piracy, if there's something you really want to watch, just buy a month, then immediately cancel the subscription to whatever service has that show, after all the episodes has aired. I usually spend between $30-$50 in total on streaming services in a year this way, and as a principle, I call it "buying a month" as opposed to "subscribing." Right now I'm waiting for Secret Wars to finish on Disney+. Will probably watch the last few MCU movies and some other stuff during the same month so that's probably up to 10 shows/movies for $whatever-a-month-goes-for these days. Might do a month of Netflix later in the autumn, as I have a few things I want to watch there now that didn't quite justify buying on their own. And no, I very rarely rewatch anything, so I don't really worry about loosing access to them in the future.