From what I understand, WTVA transmits to DirecTV and DISH via fiber. (Saw it in another forum) so that may be the reason for the good picture quality.
I wish that DISH would offer CW locally. We do have North Miss CW, but the satellite providers say that they do not provide sub-channels. The local station says that they have offered it to DISH and DIRECT, but they declined to carry it.
If that is the case, the county I am in (Monroe), if you do your research, CW is carried on WDBB 17 out of Tuscaloosa, you would think they would pick it up since it is on a primary channel and our county is more than 1/2 way within the FCC contour mapping for that channel.
If you look at the Significantly Viewed list for this area, you will totally wig out as it doesn't seem to follow any rhyme or reason for the 22 county DMA #133 that Nielsen designates. Example being with the abovementioned CW, its significantly viewed in Oktibbeha County, but not in Lowndes, Clay, or Monroe (which are all closer to the broadcast tower in Windham Springs, AL).
If you ask DISH or DIRECT they say the locals don't offer it, if you ask the locals, they says DISH or DIRECT chooses not to offer it and the FCC says they can't get involved cause its up to the satellite provider to ask to carry a channel in a particular area.
So where does that leave us. Without a way to protest the decision, to appeal the decision or anything.
(Sidenote: I live within OTA receiving range of the McCondy and Woodland towers for the locals, but due to topographical and geographical reasons even a 30 ft mast antenna will not reliably pick up the channels here. Thick trees on the neighboring property are so 35 feet taller than my antenna and all but completely obstruct a digital signal)