NBC announces '30 Rock,' 'The Office' renewals

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NBC is renewing Tina Fey's "30 Rock" for the 2009-10 season, along with "The Office" and "The Biggest Loser."

Besides the return of the comedies and the weight-loss reality show, NBC announced Thursday that it has set a premiere date for Amy Poehler's new comedy, a mockumentary about local government. The show, yet to get a title, will debut 8:30 p.m. EST April 9.

"Southland," a new police drama from "ER" executive producer John Wells, also will debut April 9, at 10 p.m. EST (0300 GMT April 10).

NBC said that fans of "ER" will get three more episodes than previously announced before the show ends for good, a total of 23. That will push its two-hour finale to April 2.

Angela Bromstad, new president of prime-time entertainment for NBC, weighed in on the fate of other series at a meeting of the Television Critics Association.

Despite a drop in ratings, "Heroes" is secure, Bromstad said. The sci-fi drama, in its third season, "may have taken on too much in terms of characters and multiple story lines," she added.

Bromstad said the network feels "very strongly" about "Life," ''Friday Night Lights" and "Lipstick Jungle." She denied reports that "Lipstick Jungle," which stars Brooke Shields, has been canceled.

The network executive's enthusiasm doesn't extend to the new sitcom "Kath & Kim" and "Knight Rider." The two shows were "fair tries" but aren't holding up in the ratings, she said. She called them "indicative of shows that may or may not be coming back."

Bromstad, who was named to her position in December, also oversees production at NBC and Universal Media Studios.

The network finished last season in fourth place and continues to struggle with its scripted programs. None of NBC's four new fall series clicked with viewers, including the already canceled drama "My Own Worst Enemy." - AP