SCERN used to be a great radio network. They had lots of great local programs, and at one time, even had a studio on the Yorktown, then moving to C of C (closed about a decade ago). They carried local folk, classical, jazz, and all types of other programs.
After they merged with ETV, they got really bad. One of the bad moves they made was when they flipped the Rock Hill jazz station to the same programming on WFAE, just so they could get those few shows about South Carolina they have on in the area.
ETV still signed off at like midnight or 1am late into the 1990s. WJWJ even had a local newscast until about four or five years ago, which was simulcast on WJWJ-FM.
They were the ones which distributed the Magic School Bus, and several other shows that played on PBS around the country. Now, they didn't even start streaming their radio feeds until last year.