Longtime "Today" show viewers are being treated to a familiar sight this week as Katie Couric returns to the co-anchor chair for the first time in more than a decade. Couric rejoined Matt Lauer on Monday to begin a weeklong stint on the NBC morning program. She told Lauer, "It just feels like I never left." Couric co-hosted "Today" with Lauer and his predecessor, Bryant Gumbel, from 1989 to 2006. She left NBC to become anchor of the CBS Evening News and is now with Yahoo News.