I have had comcast and directv for a while. I just got rid of my directtv. When I went to channel surf I noticed that I had no FOX<ABC<or NBC in hd. I still had the rest of the HD channels just no network channels. I have a digital qaum tuner that works great on most networks. How can Comcast get away with this. They are forcing me to rent a cable box just so I can receive network channels in hd.