Cable/Satellite installers are often too dumb or lazy to do the job correctly, even component cables will make a tremendous difference and you will get a true HD picture. D
This is going to sound like a really dumb question and i think should know the answer but i just wanted other opinions. I just got a new Comcast HD cable box and the guy hooked it up to my Samsung Hlr5067w with just your standard cable jack plugged into the cable jack on the tv. The box has a DVI and component jacks (no HDMI). I now get picture on the HD channels and they look HD but i just wanted to make sure that i really am getting HD through the Coax jack and not just a better looking picture. Will it make a difference if i plug in the component or DVI (through an HDMI converter) into the tv?

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