Coast to Coast is a hoot.
I listen late at night while I work sometimes. Entertaining, and every once in a while, someone comes on who isn't a nutball, and it's interesting.
It's also interesting that the part of the brain I use for verbal things is apparently not the same as I use for the visual work I do, so I can listen carefully to the radio while doing illustrations or AutoCAD work. If I'm writing (like this), I have to pay attention to one or the other.