Diane Sawyer's debut as World News anchor registered a slight viewer uptick for the Dec. 21
broadcast, according to preliminary data from Nielsen.
News averaged 8.9 million viewers Dec. 21. NBC's Nightly News prevailed with 9.3 million and the CBS Evening News was watched by 5.9
million viewers, according to fast affiliate data. (Fast affiliate data reflects viewing on ABC stations from
6:30-7 p.m. where World News airs in
most but not all markets.) For the season, World
News is averaging 8 million viewers. The show's average for Monday
broadcasts is 8.4 million.