Can I just buy a DTV HD Tuner to ad to my existing cable box to received HD channels?
Also what about rooms where I have no cable box just cable jack. I have a LCD TV in my son's room and it has a built in tuner, but some pictures are not as clear. Is there away to correct this?
a tuner like the Samsung DTB-H260F can receive the un-encrypted QAM digital signals on cable - BUT - you need to contact your cable company and ask IF they are sending the local broadcasters digital TV signals on the cable feed and whether it is scrambled/encrypted or not.