I wasn't sure where to post this, but this is as good a place as any. I have found a podcast called The Classic Rock and Metal Podcast (
Classic Rock and Metal Podcast). They have two episodes of Tommy Vance's Friday Night Rock Show. One is from '81 and the other only happens to be from the night before Donnngton '88!
Essential listening for those old enough to remember and those young enough to of missed it all the first time round.