You need to set yourself up with radarr and sonarr. Get into torrents or usenet. And finally pick either plex, emby, or jellyfin. The movie one didnt exactly change my world since I had to pick the stuff, but shows one was crazy! Add the show and gets all existing stuff and will download the news ones when released. Its especially great the following year when you didnt even know it was coming back and boom you already have it. Bonus points, I use android app nzb360 on local network to connect to all those apps and it shows whats new so I can easily add stuff. I can even connect to my download app so it shows everything in 1 spot.