When we first purchased this tv, it was to replace a very old Magnavox Console TV. At the time, we had Direct TV - with no HD service because the Magnavox did not have that capability. This set worked great without the HD Service. Later we changed from Direct TV to Dish, with HD Service; however, all channels are not available in that format. So, we are still watching non-HD channels and HD channels with this set - and both work fine with great picture.