If you’re a Roku user and a Sling TV subscriber, your experience is about to get a whole lot better. Sling announced today that it is going to roll out a new cloud DVR beta program to Roku users in December. Sling TV is a service that offers live TV (and some on-demand) channels over the internet. Pricing starts at $20 a month, and that gets users access to live networks such as ESPN, AMC, and CNN.