NBC unveils the Fall 2008 series premiere dates for new programs and returning favorites including a three hour launch of the hit drama Heroes on Monday, September 22, the Thursday night debut of the new comedy Kath & Kim (9:30-10 p.m. ET) on October 9. America's Toughest Jobs, the new extreme competition series, will debut with a two-hour premiere this Fall on September 12 (8-10 p.m. ET). In addition, the new drama series premieres include Knight Rider on September 24 (8-9 p.m. ET), My Own Worst Enemy on September 29 (10-11 p.m. ET) and Crusoe on October 17 (8-10 p.m. ET).

The announcements were made by Ben Silverman, Co-Chairman, NBC Entertainment and Universal Media Studios.

On April 2, NBC previously announced Fall, Winter and Summer nightly schedules for the 2008-09 broadcast year, allowing the advertisers to plan their media strategies for the 52-week schedule.

The eagerly anticipated return of Heroes launches with three hours in primetime on Monday, September 22 (8-9 p.m. ET) with an hour-long compilation show that will lead into a spectacular all new, two-hour premiere (9-11 p.m. ET). Second-year drama Chuck starring Zachary Levi as an unlikely security risk, returns on Monday, September 29 (8-9 p.m. ET) preceding the series premiere of the new drama My Own Worst Enemy (10-11 p.m. ET), starring Christian Slater as a seemingly simple man with a radically split personality.

The new comedy Kath & Kim, starring Molly Shannon and Selma Blair, joins the comedy block on Thursdays, beginning October 9 (9:30-10 p.m. ET). The series is based on the most successful comedy in Australia of the same name. An expanded two-hour edition of The Biggest Loser: Families (8-10 p.m. ET) will air on Tuesdays, after America's Got Talent concludes its run.

Also new to the Fall schedule is America's Toughest Jobs (previously announced for Summer 2009), a new extreme competition series from creator/executive producer Thom Beers (Ice Road Truckers) and executive producers Gail Berman and Lloyd Braun. The series will debut with a two-hour episode on Friday, September 12 (8-10 p.m. ET) and return the next week at 8-9 p.m. (ET) for five weeks before resuming from 9-10 p.m. (ET) beginning October 24.

Law & Order: Special Victims Unit (10-11 p.m. ET) will round out the night with its 10th season premiere beginning September 23.

The new drama Knight Rider (8-9 p.m. ET) will kick off Wednesdays starting September 24 followed by the dramedy Lipstick Jungle, starring Brooke Shields, Kim Raver and Lindsay Price, which returns for its second season on the same night (10-11 p.m. ET). NBC's hit game show Deal or No Deal also returns with fresh episodes on Wednesdays after America's Got Talent concludes.

Thursday night comedy favorites return with a one-hour premiere of the fourth season of My Name Is Earl on September 25 (8-9 p.m. ET) followed by the one-hour season premiere of the Emmy Award-winning The Office (9-10 p.m. ET). ER begins its 15th and final season on Thursday, September 25 (10-11 p.m. ET). The new comedy Kath & Kim, starring Molly Shannon and Selma Blair premieres Thursday, October 9 (9:30-10 p.m. ET) and the Emmy-winning 30 Rock starring Tina Fey (Baby Mama) and Emmy winner Alec Baldwin, begins its third season on Thursday, October 30 (8:30-9 p.m. ET).

Preceding the premiere of 30 Rock will be three consecutive weekly Saturday Night Live special election editions of SNL Thursday Night Live (8:30-9 p.m. ET) on Thursday, October 9, 16 and 23.

Life resumes its second season on Friday, October 3 (10-11 p.m. ET) in the drama starring Damian Lewis as a wrongly imprisoned police detective who returns to the force searching for justice. Crusoe, the action-adventure, contemporary re-telling of the classic Daniel Defoe novel "Robinson Crusoe," will debut on in a special two-hour premiere on Friday, October 17 (8-10 p.m. ET). America's Toughest Jobs will air in its regularly scheduled timeslot (8-9 p.m. ET) on Fridays leading up to the premiere of Crusoe.

Following is NBC's Fall 2008-09 premiere schedule (all times ET):

*New programs in UPPER CASE (with the exception of "ER")

FRIDAY, SEPTEMBER 12

AMERICA'S TOUGHEST JOBS Series premiere (8-10 p.m.) Returns on September 19 (8-9 p.m.) for five weeks; then resumes from 9-10 p.m. on October 24

MONDAY, SEPTEMBER 22

Heroes clip show (8-9 p.m.) Season premiere (9-11 p.m.)

TUESDAY, SEPTEMBER 23

Law & Order: Special Victims Unit (10-11 p.m.)

WEDNESDAY, SEPTEMBER 24

Knight Rider (8-9 p.m.)

Lipstick Jungle (10-11 p.m.)

THURSDAY, SEPTEMBER 25

My Name Is Earl -- one-hour premiere (8-9 p.m.)

The Office -- one-hour premiere (9-10 p.m.)

ER (10-11 p.m.)

MONDAY, SEPTEMBER 29

Chuck -- (8-9 p.m.)

MY OWN WORST ENEMY -- (10-11 p.m.)

FRIDAY, OCTOBER 3

Life -- (10-11 p.m.)

THURSDAY, OCTOBER 9

KATH & KIM (9:30-10 p.m.)

FRIDAY, OCTOBER 17

CRUSOE -- two-hour premiere (8-10 p.m.)

THURSDAY, OCTOBER 30

30 Rock -- (8:30-9 p.m.)

NEW SERIES DESCRIPTIONS:

My Own Worst Enemy

In My Own Worst Enemy, Henry Spivey (Christian Slater, Bobby) is a middle-class efficiency expert living a humdrum life in the suburbs with a wife, two kids, a dog, and a minivan. Edward Albright is an operative who speaks 13 languages, runs a four-minute mile, and is trained to kill with his teeth. Henry and Edward are polar opposites who share only one thing in common -- the same body. When the carefully constructed wall between them breaks down, Henry and Edward are thrust into unfamiliar territory where each man is dangerously out of his element. My Own Worst Enemy explores the duality of a man who is literally pitted against himself. And it raises the question: who can you trust when you can't trust yourself? Mike O'Malley (Yes, Dear) and Saffron Burrows (Boston Legal) also star. The series is produced by Universal Media Studios. Jason Smilovic (Kidnapped) is the executive producer; David Semel (director of the American Dreams, Heroes and Life pilots) is the director and executive producer.

Knight Rider

On the heels of NBC's hit movie, the iconic 1980s television classic comes roaring back to life as a reinvented, updated and super-charged action series showcasing the new KITT (Knight Industries Three Thousand). Absolutely the coolest car ever created, KITT is equipped with "AI" (artificial intelligence) that is capable of hacking almost any system. Its weapons systems matches that of a jet fighter, and its body is capable of actually transforming into other vehicles and uses sophisticated holographic imagery to elude villains. Knight Rider stars Justin Bruening (Cold Case), Deanna Russo ("NCIS), Sydney Tamiia Poitier (Veronica Mars) and Bruce Davison ("Breach"). David Bartis (Heist, The O.C.) Doug Liman ("Mr. and Mrs. Smith," "The Bourne Identity") and Gary Scott Thompson (Las Vegas, "The Fast and The Furious") are executive producers. Based on characters created by Glen Larson, Knight Rider is from Universal Media Studios and Dutch Oven Productions.

Crusoe

The new landmark series Crusoe is an epic and ambitious take on Daniel Defoe's legendary tale that finds the dashing and resourceful Crusoe (Philip Winchester) after many years of being a castaway on a desert island with his companion Friday (casting to follow). Written by Stephen Gallagher (Eleventh Hour) and directed by Duane Clark (CSI: NY), Crusoe follows the adventures of the two island dwellers while looking in flashback at Crusoe's life before he was thrown into an isolated existence filled with danger and adventure. Among those are his tragic childhood with widower father James (Sean Bean, "The Lord of the Rings: Fellowship of the Ring"), the blossoming relationship with the love of his life, Susannah (Anna Walton "Hellboy: The Golden Army") and his entrepreneurial aspirations under the watchful eye of family friend, Jeremiah Blackthorn (Sam Neill, The Tudors, "Jurassic Park"). Overcoming marauding militias, hungry cannibals, wild cats, starvation and apocalyptic lightning storms on his seemingly idyllic island, Crusoe dreams of the day he will be reunited with his beloved family. The executive producers are Justin Bodle for Power, Michael Prupas for Muse and Genevieve Hofmeyr for Moonlighting.

Kath & Kim

For Kath & Kim, they're the most dysfunctional duo in suburbia. Kath Day (Molly Shannon, NBC's Saturday Night Live) is the mom, a foxy, 40-something divorce who finally has time for herself and her valiant search for love. Kim Day (Selma Blair, "Hellboy", "Hellboy II: The Golden Army") is the daughter, a self-absorbed princess recently separated from her husband who finds consolation in stuffing her face. When Kim decides to move back home, Kath reluctantly agrees -- but to Kim's chagrin, Kath is not about to cater to her every whim as she has in the past. Based on the most successful comedy in Australia of the same name, Kath and Kim are two brassy women who prefer the finer things in life like acrylic nails, big hair and faux diamond chips. The series is produced by Universal Media Studios and Reveille. The executive producer/writer is Michelle Nader (The King of Queens) and the executive producer/director is Paul Feig (Freaks and Geeks, The Office). Gina Riley, Jane Turner and Rick McKenna also are executive producers.

America's Toughest Jobs

From creator/executive producer Thom Beers (Deadliest Catch: Crab Fishing in Alaska, Ice Road Truckers) and executive producers Gail Berman and Lloyd Braun, America's Toughest Jobs is a new extreme competition series that will test 12 people who venture out of their safe, comfortable careers and are injected into some of the most challenging, dangerous and demanding jobs on earth. From logging high in the Oregon Forest to oil drilling on the Texas range, or from driving icy roads to extreme fishing -- each job requires guts and stamina, and they'll have to live up to the same standards as the pros. In the end, their new boss and co-workers will determine success or failure, and those who don't make the grade get sent home. Upping the ante, the annual salary of each job will be thrown into the pot until the finale, where one rookie will take home the well-earned cash. Hosted by Josh Temple, America's Toughest Jobs is created by executive producer Beers and is produced by Original Productions and BermanBraun.