That is where the original DirecTV digital OTA pick up was, I thought it moved to WAVY's property a few years ago. DirecTV had a shack full of OTA equipment at WAVY last year, I don't think it was only analog, but maybe.
Dish/Echostar is located on top of WTKR's studio, near the old weather deck.
Cox ClearQAM was intermittent during Sunday's NFL, OTA was ok. Usually the Redskins games drop out before halftime and never come back, on Cox ClearQAM that is. I am guessing it is an issue with the feed from WVBT to Cox/DirecTV, it sure is annoying.