By Andy Fixmer and Ronald Grover Jan. 11 (Bloomberg) — NBC Universal Chief Executive Officer Jeffrey Zucker’s next step, having decided to yank Jay Leno’s 10 p.m. talk show, is to fix the damage done to the network’s prime-time viewership by the four-month experiment. Executives at the network, last among U.S. broadcasters in prime time, begin meeting today on how to fill the five-hour-a- week hole left by Leno, Jeff Gaspin , chairman of NBC Universal Television Entertainment, told reporters yesterday in Pasadena, California. Gaspin outlined his ideas. “There will probably be two scripted hours, another reality show, ‘Dateline’ or some re-runs,” Gaspin said, referring to the news magazine “Dateline NBC.” “I’ve been thinking about that as long as I’ve been thinking I may have to make a change at 10 p.m.” NBC lost 4.6 percent of its primetime viewers since Leno began airing at 10 p.m. weeknights, replacing more expensive scripted dramas. The move, starting in September, helped CBS Corp. increase its advertising share, Nina Tassler , president of CBS Entertainment, said Jan. 9. The switch also provided lower audiences for NBC local TV news and late-night programs. The network will return to a traditional prime-time lineup and is developing the most pilots since 2003. The so-called upfronts presentations in New York, previewing next season’s shows to advertisers, will also return to a more typical format, Gaspin said. Last year, NBC’s presentation was abbreviated and executives traveled to meet with ad buyers. “They said, ‘mea culpa,’ and they’re trying to fix it,” Laura Martin , an analyst at Needham & Co. in Pasadena, California, said in an interview. “It’s better than if they decided to stay the course just because they don’t want to admit defeat.” ‘Dateline NBC’ NBC will stop broadcasting “The Jay Leno Show” at 10 p.m. next month, Gaspin said yesterday. Leno is working on a half- hour show that would return him to his former 11:35 p.m. starting time after a hiatus for the Vancouver Olympics, which run Feb. 12 to Feb. 28, Gaspin said. The move would push “The Tonight Show With Conan O’Brien ” a half-hour later to 12:05 a.m., and “Late Night With Jimmy Fallon ” would start at 1:05 a.m. Eliminating Leno from the prime-time lineup leaves 10 p.m. open on weeknights. “Dateline NBC” has become a solid ratings performer in earlier slots at 9 p.m. on Fridays and 7 p.m.-9 p.m. on Sundays, Gaspin said. He didn’t rule out moving or expanding reality show “The Biggest Loser,” now running for two hours on Tuesdays at 8 p.m., into to the 10 p.m. slot. Allison Gollust , a spokeswoman for NBC Universal in New York, said Zucker, 44, was unavailable for interviews. NBC must still resolve the late-night lineup. The hosts haven’t agreed to the changes and were given the weekend to mull them over before further discussions this week, Gaspin said. Conan’s Choices Gaspin said he hopes O’Brien, 46, will stay with NBC. News Corp. ’s Fox and other TV networks have expressed interest in the “Tonight Show” host, people with knowledge of the talks said last week. ABC doesn’t plan to pursue O’Brien, a spokesman for Burbank, California-based Walt Disney Co. ’s broadcast network said on Jan. 8. CBS is “very close” to renewing contracts with David Letterman and Craig Ferguson that will keep the late-night hosts “deep into 2012,” Tassler said on Jan. 9. NBC, CBS and News Corp. are based in New York. O’Brien didn’t return telephone messages left with “Tonight Show” Executive Producer Jeff Ross . O’Brien’s lawyer, Leigh Brecheen, referred calls to Ross. Leno Move The decision to move Leno to prime time was made when Ben Silverman was co-chairman of NBC under Zucker. Silverman left the network in September. Angela Bromstad was made president of prime-time programming in December 2008, and Gaspin was handed oversight of the broadcast network in July. Zucker was working under financial constraints imposed by NBC Universal’s majority owner, General Electric Co., said Nicholas Heymann , an analyst at Sterne Agee & Leach Inc. in New York. The ratings decline had an unanticipated “domino effect” that hurt ratings for local news and late-night programming, Agee said. “What you have to understand is that Zucker was handcuffed, that they were cutting costs,” said Heymann. “I don’t think that they fully understood that would end up resulting in the ratings falling” so far. Comcast Corp. , which plans to acquire control of NBC Universal through a joint venture with GE, had no role in the most recent scheduling changes, Gaspin said. Philadelphia-based Comcast, the largest cable operator, rose 2 cents to $16.94 at 9:34 a.m. on the Nasdaq Stock Market and had climbed 3.6 percent in the 12 months before today. GE, based in Fairfield, Connecticut, increased 15 cents to $16.75 in New York Stock Exchange composite trading and had gained 3.8 percent in the past year. Audience Drop Through nine months of 2009, NBC’s sales and profit declined 11 percent and 27 percent, respectively. In the season that started in September, its prime-time audience has dropped 9.8 percent among the 18- to 49-year-old audience advertisers target, according to data from researcher Nielsen Co. NBC will introduce “Parenthood,” a drama based on Ron Howard’s 1989 movie, on March 1, and comedian Jerry Seinfeld’s “The Marriage Ref” on March 14, Bromstad said in a Dec. 21 interview. The network plans 18 pilots for next season, including concepts from “Star Trek” director J.J. Abrams and producer Jerry Bruckheimer , and expects to bring back “Law & Order,” she said. Resolving the lineup will cost NBC money, Martin said. Adding scripted shows will be an expense, and the company may have to spend more to keep O’Brien, she said. Zucker was named CEO of the venture when it was announced in December. Regulatory approval may take nine to 12 months. Martin, a critic of Zucker’s stewardship, credits him for undoing the late-night mistake. “It was a worthy experiment,” Martin said. “Sometimes innovations don’t work, but that doesn’t mean you stop experimenting.” To contact the reporters on this story: Andrew Fixmer in Los Angeles at afixmer@bloomberg.net ; Ronald Grover in Los Angeles at Rgrover5@bloomberg.net