I want to listen to old radio shows of casey kasem. just to rewind back, especially the long distance dedicati?

where can i download casey kasem's long distance dedication shows of late 80's and early nineties, pls helpI want to listen to old radio shows of casey kasem. just to rewind back, especially the long distance dedicati?
They use to replay them on Sirius, but i haven't heard them in over a month. Sad too, I really enjoyed listening to them.