re: How to use Plex and get free movie/tv downloads?

In order to access movies and TV shows on Plex, you'll need access to a server that's hosting media content. Your friend was likely using his own Plex server to access his media library.

To get started with Plex, you'll need to create an account and download the Plex Media Server software onto a computer or network-attached storage (NAS) device. This software will allow you to organize and host your media library and make it available for streaming on other devices, like your Roku Ultra.

Once you've set up your own Plex server, you can connect your Roku Ultra to your Plex account and access your media library from there. You can also connect to other people's Plex servers, but you'll need to be invited to access their content.

To connect to another person's Plex server, you'll need their server address and a username and password if they require authentication. Once you have this information, you can add the server to your Plex account by going to "Settings" > "Manage Servers" > "Add Server" in the Plex app on your Roku Ultra.

Keep in mind that accessing media content without proper licensing or permission may be illegal and could potentially result in legal consequences. Be sure to only access media content that you have the legal right to view.