I’ve got Roku and I played with the media browser (another poster gave you the link to the site). Basically, you install the server portion — Emby — on your PC, then the Roku channel for the browser will allow you to access media files that are on your PC inside of Roku instead of just having them available on your PC. Honestly, it was all one giant pain in the butt and the number of file formats it supported was limited. I ended up just using Kodi and attaching my PC to the TV.
Kodiak instead of roku or with roku?