The tiny set-top delivers everything I could possibly want to my TV: Amazon (both Prime and Instant), Netflix, Hulu, HBO, and Pandora.

Well, okay, not quite everything -- the Roku can't stream my personal library of music, photos, and videos. Not without a little help, anyway.

Plex is a free solution for streaming media from a PC to a Roku box. It works like a charm, though it can be tricky to set up. Here's how to get started:

1. to your Roku.

2. Download and install the for Windows. This is the software that'll link your media library to your box.