I have a hdtv with screen adjustments of 1:1, full screen, aspect, zoom 1 and zoom 2. My dish 612 has 16 x 9, 4 x 3 (1) and 4 x 3 (2). My question is that when I watch tv I notice that the sides are cut off slightly. I could tell this for example when I watched a PBS show last night and a name...