Before the days of Clear Channel:
We offer hundreds of vintage radio shows for you to listen to online in mp3 format, all for free. Before the days of video games, shopping malls, MTV, and the Internet, families used to sit in their living room each night to listen to radio shows such as Abbott and Costello, Superman, Groucho Marx, The Avenger, Gunsmoke, Sherlock Homes, and many others.
Give it a go, yo. You could spend a lifetime on this site.
[found via the gentle yet large hearted boy]