Likely some areas of North Carolina's northeastern Coastal Plain where you were sited roughly equidistant from the Raleigh-Durham, Richmond-Petersburg, Norfolk-Portsmouth-Newport News, and Greenville-New Bern-Jacksonville markets:
2-WUND, Edenton, NC (formerly Columbia, NC)
3-WTKR, Norfolk, VA
4-WSKY, Manteo, NC or WUNC, Chapel Hill, NC
5-WRAL, Raleigh, NC
6-WTVR, Richmond, VA
7-WITN, Washington, NC
8*-WRIC, Petersburg, VA
9-WNCT, Greenville, NC
10-WAVY, Portsmouth, VA
11-WTVD, Durham, NC
12-WWBT, Richmond, VA or WCTI, New Bern, NC
13-WVEC, Hampton, VA
*WFXI-8/Morehead City, NC was sited too far southeast for this alignment to work
Perhaps some areas of western and northwestern North Carolina, especially high elevations:
2-WETP, Sneedville, TN or WFMY, Greensboro, NC
3-WBTV, Charlotte, NC
4-WYFF, Greenville, SC
5-WCYB, Bristol, VA
6-WATE, Knoxville, TN or WVVA, Bluefield, WV
7-WSPA, Spartanburg, SC or WDBJ, Roanoke, VA
8-WVLT, Knoxville, TN or WGHP, High Point, NC
9-WSOC, Charlotte, NC or WSWP, Beckley, WV
10-WBIR, Knoxville, TN or WSLS, Roanoke, VA
11-WJHL, Johnson City, TN
12-WXII, Winston-Salem, NC
13-WLOS, Asheville, NC or WSET, Lynchburg, VA