I'm not sure if they do have the technology. Most Comcast boxes (Motorola, Scientific Atlanta) are only decoding MPEG2 digital streams, I believe. It would be

I'm not sure if they do have the technology. Most Comcast boxes (Motorola, Scientific Atlanta) are only decoding MPEG2 digital streams, I believe. It would be quite expensive to roll out to all existing customers a DOCSIS Roku box with a QAM tuner. All the RF stuff makes it more expensive to produce, design, and maintain. Someone else with more knowledge of CATV infrastructure and equipment could please clarify.