The Radio-WZUM 88.1. Pittsburgh has a Jazz channel! It's a public station and a but tough to pick up with a clean signal. I have not yet figured out if it is affiliated with WQED or WYEP/WESA.
Here is the skinny:
Very quietly over the last five years, the Pittsburgh Jazz Channel has been building a 24/7 jazz service that carries on the musical legacy of the late, and lamented, WDUQ. We’re a small, bare-bones group of volunteers who love this music dearly, and who think that as one of jazz history’s most important cities, Pittsburgh deserves a radio station that will focus on offering this music – a station that won’t hide it in corners of its schedule, or think of it as something to be put on the back burner. JAZZ RADIO IS WHAT WE DO.
www.wzum.org