Jay Leno’s Tonight Show continued increasing its audience lead over Late Night with David Letterman in the most recent Nielsen ratings report.
Leno averaged 4.6 million viewers for the week ended March 21 versus 3.6 million for Letterman’s Late Show and 3.3 million for ABC’s Nightline . That’s way down from his 5.2 million season average a year ago but a considerable improvement over Conan O’Brien’s average of 2.8 million from June through December.