When you want to take full advantage of Plex's service, the device needs to be activated through Plex.tv/link .
Once the device is activated, the streaming experience becomes even simpler from Plex.tv/link .
To watch content on a new screen, you first need to go to the Plex.tv/link page and enter the user code.
When you want to watch Plex content on a bigger screen, you need to link the devices by following the process at Plex.tv/link .