All sarcasm aside, the term "city grade" is an FCC term to describe the 70 dBu contour of an FM signal. In WMEV's case, with 100kw @ 452 meters HAAT, the "city grade" contour misses Bristol by about ten miles. Bristol is, however, within WMEV's 60 dBu "primary" contour--generally considered to be listenable on most car radios, though usually too weak to be heard on radios inside buildings (especially important since most radio listening, regardless of format, is done at work). WMEV's 60 dBu signal contour includes both Bristols, but falls short of either Kingsport or Johnson City.
Bristol/Nininger has an outstanding reputation, and for at least the last 20 years I have personally cited WXBQ as a model of programming and promotional excellence. As it happens, I work for a radio company in that same league. My observations are not intended as an attack on either WXBQ or B/N.
You stuck your neck out, soliciting praise for winning in a non-competitive market. Several posters have chastised, teased or mocked you for your narcissism. Get it?
Now, cool down and count your damn blessings.