The Mike Fenton interview is now online at the Archive of American Television.
http://tvinterviewsarchive.blogspot.com/
http://video.google.com/videosearch?q=%22archive+of+american+television+interview+with+Mike+Fenton%22&num=50&so=2&start=0
Mike Fenton was the I Spy casting director (and I think an associate producer for a time too). I have watched the entire interview. Most of the I Spy content is contained in the first two parts. Mike Fenton is candid and opinionated and very interesting to listen to. I didn’t agree with everything he said about I Spy, particularly concerning Culp and Cosby’s ad-libbing. He does seem to have forgotten that Robert Culp wrote seven of the scripts, and many of the best ones.
The last three parts of the interview are well worth the trip as well. He discusses his career as an independent casting director (which continues to the present moment) with several good stories. (Becca, you may take exception to something he says about NASCAR near the end of the interview.) Mike certainly describes things as he sees them.
Jimmy