I really doubt any dollars are coming their way. Such programs are bartered. You air the network spots and try to sell the local avails. The station has no clout as far as Dallas/Fort Worth is concerned. It is a small market station in the shadow of DFW making things difficult because a percentage of the local population is happy with a Dallas station and some of the population might work on the western fringes of the Metroplex.
As for sales, Covid-19 is affecting sales. No matter what is on the air, Covid affects sales. Merchants have had economic losses so no matter what the programming is, the merchants either don't have an advertising budget like they once did or they don't want to spend right now. So, you can change programming but the merchants still don't have the dollars to spend. You're not going to pull in advertising revenue overnight on a Greenville AM. Selling anything after about 7pm unless it's high school sports is almost impossible. One station I worked years ago charged $3 a spot for daytime spots but you could buy a day and night spot for $3.25.
What might be possible (but I doubt it), assuming the station is owned by a group operator, is the station is acting as a 'holder' for the programs that might go to another co-owned station not far from Greenville in the future. I could see a company doing that if they felt a competitor might grab the programs.