Katie Couric, who co-hosted the "Today" show on NBC with Matt Lauer from 1989 to 2006, has returned to the co-anchor chair for the first time in more than a decade. Couric rejoined Matt Lauer on Monday January 2 and will spend the week co-hosting the NBC morning show. On Monday Couric told Lauer, ?It just feels like I never left.? She left NBC in 2006 to become an Evening News anchor on CBS and is now a global anchor with Yahoo News.