I like listening to NPR, but I when I moved from Monterey, CA (which has a really well-funded station) to Lincoln, NE (which doesn't), I find that I get more jazz than anything else.
Now, I like me some jazz as much as the next guy, but the reason I listen to NPR is for the news and information. So, when the jazz comes on, THAT'S when I switch over to my CDs.
CarTalk is good stuff, all the way down to their legal representation: the law offices of Dewey Cheatham & Howe. XD