Maybe it only hit the news in the eastern side of the state? From the TV clips on the website it looks as though WCSC-TV Charleston carried a lot of reports on the story. I was in that area in 1993, but don't think I went by there on SC61.
I came across the Overcomer broadcasts on shortwave quite by chance a couple of years ago. I'd forgotten about it until somebody on another forum mentined it, so I did a search.