Commentary: CBS should shelve the cute stuff and stick to ... the news NEW YORK (MarketWatch) - "I am very happy to be with you tonight." With those un-momentous words Tuesday night, Katie Couric, 49, was off and running as the new anchor of "The CBS Evening News." At last the hype was over and the former star of NBC's "Today" show would have an opportunity to prove herself as a serious evening-newscaster. She dropped the ball. At its worst, the show reinforced all of the worries of grizzled veteran journalists. This wasn't all Couric's fault. She was, as billed,...