<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"/> June 27, 2004 When Science Was Simple: Watching Mr. Wizard OZO THE CLOWN. Howdy Doody. Mr. Wizard? He may not have the same name recognition as his fellow 1950's kiddie TV superstars, but Don Herbert was a television Einstein: in 1955, there were 5,000 Mr. Wizard Science Clubs, and more than 100,000 children had applied for memberships. His show, "Watch Mr. Wizard," which ran each Saturday at noon on NBC from 1951 to 1964, was simplicity itself: the avuncular Mr. Herbert, using basic experiments to teach his precocious assistants scientific principles. (Basic enough...