Make sure your TV has an internet connection. Open the Samsung Smart Hub or Samsung App Store, depending on your model, and sign in if necessary. Select recommended apps from the main screen and either browse or search for plex.tv/link . Select Install from within the Plex app screen and let the TV install the app. The basic functionality of Plex is completely free, which includes playback of anything on your server, as well as Movies & Shows, Live TV (from Plex), podcasts, and web shows. Free Plex accounts may have up to 14 managed users total in your Home (15 total users including the Home Admin account).