Another easy solution is SlingBox (which I actually use at home). So I can watch my home DVR either live, or play back recordings, or schedule new recordings, or do literally anything I could do if I were sitting in front of the box with a remote. And it works over WiFi and 3G, both inside and outside the home. PQ is decent if you get one of the newer SlingBoxes with HD capability (they connect with component video). They have both iPhone, iPad, and Android apps as well as a Windows viewer.