May was Countdown with Keith Olbermann's worst month so far in 2010 in the cable news advertiser target adults 25-54 demographic. The show's May, 2010 monthly average of 250,000 adults 25-54 demo viewers was 23% below its 323,000 average in May, 2009.
The chart shows Countdown's 13 month trend in adults 25-54.
All numbers are Live+Same Day.
Nielsen TV Ratings: ©2010 The Nielsen Company. All Rights Reserved.