Those four towers are definitely WDVA, located at 1 Radio Lane off US 58 Business west of town). They are quite a sight at dusk coming down Piney Forest Road towards Riverside Drive.
1250 WDVA broadcast 5,000 watts day and night, and you can tell one of those towers was a later addition, I think the furthest west in the array. I think they were AM stereo at one time as well.
WDVA was a longtime country outlet until around 1991 or 92, when it went dark awhile. The land the station sits upon is adjacent to Danville's tawny Westover neighborhood and there was talk the station might be bulldozed in favor of other development on the valuable site, but WDVA came back, this time with the current black gospel format. Before going dark, they aired Rush Limbaugh's program, which moved over to cross-town 1330 WBTM. In the 1950s and 1960s, the station hosted a "WDVA Barn Dance" on Saturday nights with live country acts.