(Creating an account is free getting a full feature set costs $5 per month, $40 per year or $150 for a lifetime pass. Visit the Plex website, create an account on the sign-up page (opens in new tab). If you don't have a Plex server already, it's not hard to set one up. To watch your Plex content on a Roku, you don't even need to download a new app Plex usually comes preinstalled. While it's not the simplest or most comprehensive app out there, it is almost definitely the prettiest. Plex has quickly become one of the hottest media-server apps on the market, and with good reason. Just be aware that if you activate the advanced options (it will ask you during installation), you might be overwhelmed by the amount of networking and transcoding jargon. It's free and extremely lightweight, and will start off sharing all media on your computer by default. Universal Media Server is also an excellent choice for PCs, Macs and Linux machines. By default, Windows Media Player will share your entire Library, which you can control under Organize and Manage libraries. From there, you can configure which networks and devices have access to your content. Simply open it, click on Stream, and Turn on media streaming. If all else fails, Windows Media Player is actually a perfectly competent media-server program.

If you need to set up a media server, try one of the apps mentioned above. There are no real 'steps' to use it: Just configure a media server on your computer or mobile device, then open the app on your Roku. Roku comes with its own media player, which can play videos and music or view photos right from your computer or mobile device.

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