As we have done for years, we let you, the listeners, decide which of three series will be covered through our Viewer's Choice vote.  You have spoken loud and clear that you want us to talk about a live action kid's show from 1976 where a science teacher has a little sip from The Fountain of Youth while visiting Florida.  At that moment, he gained the ability to become a younger version of himself, but had no control over when the transformation happened.  The trademark Sherwood Schwartz hilarity definitely ensued.