Sling TV's Cloud DVR feature is slowly becoming available for more subscribers. Now folks who use Android and Roku devices to stream live TV can pay $5 extra a month to store 50 hours of video on Sling's servers for anywhere/anytime viewing -- half as many hours that beta testers had access to in November. Of course, the Cloud DVR tools (like rewinding and skipping commercials) aren't available across every channel, which puts a damper on having them in the first place. And it even calls the entire feature's name into question, to be honest.