I had some trouble finding the place to subscribe on their site, but this worked.
Purchase a one year subscription to the EPG1. Visit the Silicondust DVR page here:
https://www.silicondust.com/dvr-service/2. Scroll down to GET NOW and click on it.
3. Fill out the form and pay.
You'll get two emails. One is a receipt and the other is the license AND a link you can click on to install it.
4. Click on the link ("click here") in the license email and fill out the form. Javascript must be allowed in your browser.
5. SD's web page will find your tuner and install the license.
Set up MC to use SD's EPG1. In MC, visit the Load EPG option in setup. It's under Television.
2. Unselect any other EPG and select Silicondust. Check the box AND click on the line for Silicondust EPG. Click OK in the lower right.
3. The EPG will be downloaded and installed.