Ok..so there is no way to tell if you buy a QAM type of tuner if it will work with your cable system?..Ive had a brief discussion with Daniel about this..he has one of the Sony Hdd tuners and id love to get away from the Motorola boxes we have now..but at what the HDD costs and then if you have to use the cable card its gonna work out more expensive than just renting the STB..