07/17/2009 05:12 am ET Updated May 25, 2011

Letterman's Ratings Soar On Palin Apology: Beats Conan By 700K Viewers

Monday night, when Mr. Letterman offered his extended apology to Governor Palin and her family, he had his best night yet in the continuing late-night competition against NBC's new "Tonight" show star, Conan O'Brien. In preliminary national ratings, Mr. Letterman pulled in 700,000 more viewers than Mr. O'Brien Monday night, 3.9 million to 3.2 million, his biggest margin yet over his new competitor. Mr. Letterman routinely trailed the former "Tonight" host Jay Leno by a million viewers or more.

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