look in the menus for the box.
The HD equivalent for any channel that is in your Comcast cable subscription package should be free. Why not just fix the problem the most logical way and upgrade to an HD receiver?
On the other hand, if you're internet connection can handle 1080p streaming to your satisfaction, why not just watch the programming you are interested in from Comcast's website? That would certainly look much better than a SD feed.
Ok checked all Box settings and all are set properly.
I tried hooking up a RCA cable from the box's vid out to the TV's rca vid in and it improved a good amount, this should not be so that puzzling
the HDMI method only looked slightly better than coaxial out.
are most HDMI cables pretty equal in performance?