PASADENA -- "The Jay Leno Show'' will no longer air weeknights at 10 p.m. after the Olympic games start Feb. 12, NBC Universal Television Entertainment Chairman Jeff Gaspin said on Sunday.   

Gaspin said he has proposed that a half-hour version of the Leno show to air at 11:35 p.m., followed by "The Tonight Show with Conan O'Brien'' at 12:05 a.m. and "Later with Jimmy Fallon at 1:05 a.m., but an agreement has not been reached.   

"As much as I would like to say we have a done deal, I cannot say that now,'' Gaspin said during NBC's portion of the Winter Television Critics Association Press Tour in Pasadena.   

"In November, we started hearing from our affiliates that our local news is being impacted more than we expected,'' Gaspin said  "At the end of November, they told us it's not really getting much better for us -- in some cases we had a No.1 newscast, now we're No. 3   

"Towards the middle of December, they made it clear they would be more vocal about their displeasure. I realized this would not go well if we kept this and I made the tough call.''   

Importantly, O'Brien has not yet signed on, and has dropped hints about finding an alternative network, such as the Fox network.   

Leno also has pulled the so-called "Fox card,'' joking last week that if his NBC gig was cancelled, it would allow Leno time to travel, and the weather at Fox "is beautiful at this time of year.''   

In Pasadena on Sunday, NBC announced it had greenlighted a large slate of dramas for the 2010-2011 season, including a remake of "The Rockford Files,'' produced by David Shore ("House'') and Steve Carell ("The Office''). Other new NBC dramas include:   

-- "Prime Suspect,'' a remake of a BBC series about a courageous female police detective who works complex cases in a politically-charged city;   

-- "Chase,'' a series about a fugitive apprehension team of U.S. Marshals based in the Southwest, from producer Jerry Bruckheimer; and   

-- "Kindreds,'' a legal drama from David E. Kelley ("L.A. Law,'' "Boston Legal'').   

A Los Angeles-based version of "Law & Order'' is also in development, said Angela Bromstad, NBC and Universal Media Studios president of primetime entertaintment. NBC also has commissioned a comedy project from Adam Carolla.   

But the February reshuffle leaves a temporary, massive programming vacuum at NBC after it finishes airing the 2010 Winter Olympics.

Following the Olympics, to fill the five hours on its prime-time schedule that had been devoted to Leno, NBC may add two new hours of drama and an unscripted series and extend the news magazine "Dateline NBC'' to two hours. A rerun may fill the fifth hour, Gaspin said.   The new programming would not necessarily air at 10 p.m., Gaspin said. ABC and Fox have aired reruns on Fridays this season.   

The shuffle is being driven in large part by complaints from NBC affiliates across the country who have lost viewers and advertising revenue because of Leno's performance in the 10 p.m. slot. Ratings for the NBC Baltimore affiliate's 11 p.m. news have shrunk 50 percent, and the station's early morning news has also suffered significant audience erosion, the trade journal Broadcasting and Cablecasting has reported.   

The once-dominant "Peacock Network'' has seen its ratings languish in recent years, and the move of bringing Leno to the 10 p.m. hour was seen by TV critics as a plan by NBC to replace high-cost dramas with the comparatively- cheap Leno production.   

The matter has even surfaced in Washington, where regulators are examining a proposed sale of NBC from General Electric to Comcast. Because the Leno move to 10 p.m. saved GE money but severely hurt NBC affiliates owned by other companies, NBC affiliates were pressuring the network to reverse the move.