Radiolovers.com is a site featuring free old time Radio shows
They 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, The Saint, Superman, Groucho Marx, Bulldog Drummond, The Avenger, Gunsmoke, Sherlock Homes, The Shadow, and many others. When TV become popular in the 1950's, most of these shows went off the air, but they now live on at websites such as this one and on weekly nostalgia radio broadcasts worldwide.
The offer quite a nice selection of The Saint starring Vincent Price. I hope they add more from the complete list to their site in the near future!