Is your family making you fat?

If so, NBC wants to meet you and hear your story.

Hundreds are auditioning for a new reality TV show called "Losing It with Jillian."

The concept is one-part "Nanny 911" and one-part "The Biggest Loser," with a splash of " Extreme Makeover: Home Edition." It will air in 2010 and boasts producers with ties to heavy hitters including "Loser" and "Oprah."

The star is trainer Jillian Michaels of "Loser" fame. After choosing eight families, she will move in with each for one week to observe their environment, habits and food and fitness choices. She hopes to cut through the clutter of excuses, bad decisions and enabling peers to help those families find solutions to make their lives healthier.

"Everyone has their own set of ways they could make changes," said Jodi Thomas, the show's casting director. "Maybe they don't eat dinner together, maybe there are family issues, maybe there are things they haven't discussed or haven't thought through. They're not communicating with each other; they're playing too many video games. We're going to get people to open up and talk. It's about working things out as a family."

Michaels will handle not just the fitness intervention but also will help people with emotional struggles, something Thomas said she's had success with on "The Biggest Loser." Curtis Stone, known as the "Take-Home Chef" from TLC, will provide cooking lessons.

Sheila Kitchens, 35, is sure Michaels could exorcise her weight-loss demons. At 4-foot-11 and 250 pounds, the Milwaukee mom of four admits she's overweight. Kitchens was a teen mother four times over; her kids range in age from 16 to 20.

Now she's trying to get her life back on track by taking business classes online through American Intercontinental University. But she said she has tried and failed to lose weight and needs help. "I have the ab lounge, the ab roller, all those things," she said.

Kitchens believes Michaels, known for her no-nonsense attitude served with a side of sugar, could help her. That's why she plans to head to the Chicago audition next week.

"I'm definitely excited," Kitchens said. "I believe she's a strong person with a sincere heart to help people lose weight. It would be a dream come true."

The show is looking for families with kids, but couples can apply, too. The individuals don't need to be drastically overweight, but should have at least 25 pounds to lose.

People will be seen at the auditions in the order they arrive, and Thomas said she expects to speak with every family. If only one family member can make it, that's OK. Bring non-returnable photos of each family member.

Thomas said the show "definitely" intends to cast a family from Michigan, one of eight casting locations. Why? It seems the state's track record of being fat and friendly makes for good TV.

"I've cast 'Biggest Loser' and for the last three seasons, I've been to Michigan and found the people are hard-working, loveable, amazing people," Thomas said.