DTV has it's pluses and minuses for certain. Here in Allentown, we have channel 2, KJWP, on the same stick as all the other channels, yet it craps out exactly at sunset... it may or may not return as the evening continues... go figure. Their power is minimal in my estimation... like 7.6kw or something like that. Channel 6, WPVI, has been absent since the transition but ABC, for what it's worth (nothing), is available on 16 from Scranton. My BIGGEST gripe is move the antenna a degree or two and you lose it... must be aimed dead nuts on!!! My antenna is the biggest whopper Antennacraft ever made, the Discovery D9000, I think is the model. I have another and am considering stacking two.
My buddy lives 14 miles south of me on a higher area and receives NY, Philly, Baltimore and sometimes Washington reliably... I'm thinking the higher and bigger the better... YMMV...