I’ve been doing this since 2008 - although I only recently setup Plex in 2017, before that I just ran a web server and played movies in a browser on various smart TVs, but around 2017 was when my main TV got an update that rendered its browser mostly useless… Fuck Sony by the way. And before smart TVs I just had a video card with TV out and long cables… Or burning VCDs, I still have my 5-disc DVD changer that could play VCDs as long as they were burned to CD-RW discs, though it’s just gathering dust now.