Diane Sawyer says this is her last week on 'GMA'

FILE - In this Oct. 24, 2008 file photo, television journalist Diane Sawyer attends the Friars Club Roast of "Today Show" host Matt Lauer in New York. Associated Press

December 7, 2009 7:23:26 AM PST
Diane Sawyer says this week is her last as co-anchor of ABC's "Good Morning America" as she prepares to replace Charles Gibson on the network's "World News."