The overnight Nielsen Ratings are in, and they are a disaster for Katie Couric. Couric's CBS Evening News was beaten by ABC WNT in New York, Chicago and other major markets After all the hype, CBS and the other networks had expected a "honeymoon" lasting for at least a month as viewers sampled Couric's new show. It lasted one night. Although she eeked out a national ratings win, the big cities have already abandoned her. In places such as New York, Chicago and Philadelphia, where the big advertising dollars are spent, last night's CBS/Couric ratings free-fall mean one thing; Viewers...