I have HDHomeRun Prime (3 tuners with CableCard) with DLNA beta firmware. This one works well with XBMC installed on Nexus 7 32G. I added HDHomeRun Live folder under DLNA source of the XBMN and able to see the live TV feed from the HDHomeRun box DIRECTLY. SD works very well. I need to be very close to my WI-Fi Router (FiOs) to run the HD channels smoothly. Unfortunately, Nexus 7 is not an appropriate STB for TVs. Therefore, I am trying Co-Star. But, I had lot of trouble with Co-Star. It does not recognize HDMRP as appropriate DMS for contents purpose. Eventually, I was using a UPNP controller on Nexus 7 to force HDMRP as a source toward Co-Start build-in player. It worked to some extent but bad choppy video quality even for SD channels. I was so excited and happily accepted the firmware upgrade (which I believe to upgrade to GoogleTV 3). But after that upgrade, it always has trouble to display any channel. On the HDHRP log, it indicated that Co-Star is not compliant with the DLNA spec now. Has anyone ever tried this type of combination with whatever the Co-Star firmware built? I also installed XBMC on Co-Star, but every time it started with fatal error, I have to uninstall it eventually. I also tried to use MediaHouse UPnP on it, but can not find a good video player to pair with it. The buildt-in on does not work.