- Download your B-movie Riff's High TV format and stick it on a USB drive.
- Make sure you've installed the Roku Media Channel. It's available through the Channel store or the Roku website.
- Plug the USB drive into the front USB port of the Roku 3
- Launch the Media Channel and select Videos.
- Select the drive and folder where your Riff lives on the USB drive, and you're good to go!
Check out this Tom's Guide for a more detailed guide with images.