A:Answer If your new tv has a coaxial cable terminal on the back or side, you can run a coax cable from your cable box or wall outlet. Most cable boxes today come with HDMI ports so as long as your tv and your signal provider (i.e., cable box or whatever) have HDMI ports, this will work fine. The tv picture quality will be a bit better using an HDMI cable, but on a 19" tv, I really don't think you'll notice it that much if at all.