Jay Leno ratings dip below Conan O'Brien's

LOS ANGELES (Hollywood Reporter) - NBC might have summer's most-watched show in "America's Got Talent," but the network's late-night ratings aren't so hot.

"The Tonight Show With Jay Leno" is pulling a smaller number among adults aged 18 to 49, an elusive demographic coveted by advertiser, than when Conan O'Brien hosted the show last year. In fact, this summer is the lowest-rated "Tonight Show" on record, though such feats have become increasingly common on broadcast across the board.

Since the end of the broadcast season in May, Leno is averaging 3.8 million viewers and a 1.0 adults 18-49 rating (each ratings point in that demo equals about 1.3 million viewers). That's a 12 percent improvement in total audience compared with O'Brien, though off 23 percent in the demo and down in both measurements compared with Leno's performance two years ago.

His percentages greatly improve if comparisons begin a few weeks deeper into the summer so "Tonight" is not facing O'Brien's opening weeks hosting the show, though O'Brien is tops in the demo either way.

Even with the reduced rating, Leno is back to beating his top rival, CBS' "Late Show With David Letterman," by a healthy 22 percent in both metrics. CBS counters that Letterman's ratings are at least holding steady compared with last summer, when Letterman hit an all-time low of his own.

Other late-night hosts have been showing stability too, with NBC's "Late Night With Jimmy Fallon," CBS' "The Late Late Show With Craig Ferguson" and ABC's "Jimmy Kimmel Live!" maintaining their demo averages, and Fallon and Kimmel even sporting gains in total viewers.

Heading into the fall, NBC's affiliates say that, if anything, they're pleased about the schedule in general and late-night in particular. Last year, stations contended with the expected ratings decline of putting Leno at 10 p.m. and the uncertainty of O'Brien hosting "Tonight." Station managers are looking forward to having scripted dramas back in late primetime, which in turn should fuel audience momentum into late-night.

There's an expectation that it's nearly impossible not to have a better story to tell advertisers in the fall, especially with NBC stocking up on dramas like high-concept series "The Event" and shows from top-shelf producers Dick Wolf ("Law & Order: Los Angeles"), Jerry Bruckheimer ("Chase") and J.J. Abrams ("Undercovers").

"There's been a lot of NBC stations that have suffered significant declines in late prime, and that's not going to happen with this lineup based on the estimates buyers are getting," said Eric Lassberg, president and GM of NBC affiliate KXAN-TV Austin. "All evidence points to our ratings going up (at 10 p.m.)."