SEASON PREMIERE: It was precisely 49 years ago today – on Sept. 24, 1968 – that CBS presented the inaugural telecast of a new TV newsmagazine, 60 Minutes. Created by Don Hewitt and co-hosted by Mike Wallace and Harry Reasoner, it not only has survived on TV ever since, but has generated a consistently excellent, usually unparalleled body of work in the TV newsmagazine field. To date, 60 Minutes has earned 20 Peabody Awards, 138 Emmys, and still manages, many weeks, to land installmen