Well not quite what you are asking for, but I am using a Nexus-s and Twinhan 1020a in the PC at the same time. I had tried 2 Twinhan 1020a cards, and could not get the drivers to load for both cards. I had in the past tried an ATI HDTV and a Twinhan, but MyTheatre would lockup with the version I had. It did work with an older version. (i.e. MyTheatre would run for the satellite card and the ATI application would run for the ATI card. Don't remember the version numbers) I did not use MyTheatre to control the ATI card though. I do think that with the newest version of MyTheatre, it will now work with the ATI HDTV and a satellite card at the same time, but do not think that MyTheatr can control the ATI card yet. I have not tried it again though, as I was not quite close enough to the OTA stations to get a reliable OTA signal. I have settled on just 2 satellite cards now. I do think that MyTheatre will work with the Fusion OTA HDTV card (allow you to watch with MyTheatre), but do not think it is working yet with the ATI HDTV card (to watch with MyTheatre), but the two cards should be able to work in the same PC. Just need a different appiction to control the ATI card.