WOW, four tuners in media center (five with the 950q). The forum leader, Daniel Tonks was maintaining the QAM list... I think he scans it every year or two. Not sure how up to date it is now. Will have to let Daniel answer.

However, you will need to just try it out... not sure what is available on your cable provider. Definitely the hauppage tuner will pick up QAM.... If its possible, I would get the tuner at a place where I could return it if the setup does not work.

I read a while back that in some US cities, cable is forced to carry QAM signals for locally broadcast TV stations. Not sure if this is true now.