First, I would check for information at this web address:http://www.antennaweb.org/aw/Address.aspx
I would not, however, take the antenna recommendations literally, but you should also go to an orientation map at the same address for directions to the various transmitters. All stations in this area, except SCETV which is on Channel 9, are UHF and this makes for a small, easily handled antenna. I have not consulted a map for your area, but unless you are behind the ridge line running through Spartanburg, I am really surprised you are not getting WYFF and WHNS...both on tall towers and on high mountains. WLOS could be problem with its low power at this time. How well do you receive the analog transmissions for Channel 21, 62, 33 and 29? That would be a good indications for what should be usable UHF-DT reception. And, generally speaking, DT is easier to receive than Analog.