Chris, I know you worked master control for a while. Back in the late '70's, when I worked in master control, we had these slides which would accompany booth announcer copy for various shows. By the early '80's the slides had been replaced by video promos. In the traffic mgr's office were hundreds of old promo slides. Where they are now is a mystery, but I could probably get some quick cash on Ebay if they were to be sold. You should check your station's archives for free stuff nobody wants.