Radio networks are important. South Carolina and Clemson have had statewide networks for 40-50 years. You can go anywhere in the state of South Carolina and find at least one, usually two or three stations carrying Carolina and/or Clemson games. Clemson had a even larger network in the late 1980s and 90s.

They had stations well into GA, NC, TN, and even other states. Atlanta had Clemson and Tennessee radio affiliates for a long time. Even now, Clemson has an Atlanta radio affiliate (1160 AM) that carries football AND basketball.

The Citadel for a long time had pretty much a statewide network. They had at least ten stations on their network. Even now, they have an affiliate in the Columbia area which they've had for 25-30 years. SC State's games used to air in the Charleston area. Now, they don't. They only air in the Columbia market.

Coastal Carolina games only air in the Myrtle Beach area. They haven't had the statewide influence yet to get stations outside of the Grand Strand. After a couple of seasons in FBS, they will probably gain more affiliates.