I grew up in Rockford, Il and WXRT was my favorite station. I've since moved to the SF Bay area, and there is a station called KFOG that sounded suspiciously like XRT. I called in one day and mentioned the similarity to the DJ and he said that the program director used to be the PD at WXRT. Small country, huh?
Now I listen to 3WK Classic Undergroundradio, an internet station (
http://www.3wk.com/player/playerNEW.php?station=classic) that is also available on iTunes radio. They play an amazing selection of little-known underground stuff from the '70s. Stuff you probably never heard of like Steely Span, Triumverat, Nektar, Bloodrock, plus standards like King Crimson, Genesis (the old Peter Gabriel stuff), etc. And of course, the Sinking of the Titanic by Jamie Brockett!
A lot of the stuff they play sounds like an old late-night program on the 50,000 watt Little Rock AM radio station KAAY (the mighty 10-90): Beaker Street with Clyde Clifford. It was a late '60s - early '70s show that came on late at night on an AM radio station that pretty much set the pattern for the progressive FM stations that came later. All you old fans can take a trip down memory lane here:
http://beakerstreet.com/