Let's face it: South Florida has one of the worst radio markets in America. If you want something other than cookie-cutter pop, rock, hip-hop, and country, you need to go satellite. But the publicly financed WLRN remains an oasis from the commercial combine, where you get a whole lot more than the solid NPR stuff. There's Topical Currents with Joseph Cooper, which is one of the last decent local shows left in South Florida. There's South Florida Arts Beat with Ed Bell, where you find out that, good golly, there are intelligent life forms growing in these parts. And the station also offers us interesting music. Every night, there's Evenin' Jazz with Len Pace. On Sunday afternoons, Michael Stock brings us his show, practically titled Folk and Acoustic Music. I know, I know -- you have to suffer those incessant pledge drives. Take the medicine, boys and girls, and throw some money their way every now and then. You won't know how bad you'll miss WLRN until it's gone.