In this photo released by CBS, former Supreme Court Justice Sandra Day O'Connor discusses her new book with host David Letterman on the set of the "Late Show with David Letterman," Tuesday, June 23, 2009, in New York. (AP Photo/CBS, Jeffrey R Staab)
There are some startling changes in late-night TV ratings.
David Letterman whipped Conan O’Brien last week by 800,000 viewers. It was Letterman’s largest margin of victory over NBC’s “Tonight” show since 2000, when the CBS host returned from heart surgery.
Letterman’s “Late Show” has won two of the last three weeks when both he and O’Brien competed with original programming. Letterman was a longtime second-place finisher to “Tonight” when Jay Leno was host.
NBC says they’re happy with O’Brien since he’s delivering a younger audience, which advertisers pay extra for.
Last week the median age of O’Brien’s audience was more than 10 years younger than Letterman’s.
Top 10 Most Talked About Celebrity Stories in 2010: Year In Review
