U.S. cable network TLC says it is working with the producers of "The Biggest Loser" on a new show starring celebrity nanny Jo Frost. Frost "is back and ready to use her expertise to help families that have run out of options and need her help," the network said in a casting notice released Thursday. "Are you a family in crisis? If you are a parent with kids ranging from toddlers to teenagers in need of desperate help, we are searching for you. Are you at your wit's end? Are your kids lying, bullying, drinking, failing out of school or even something worse? Or are you just overwhelmed with your family's circumstances and don't know what to do? If so, Jo Frost can and wants to help immediately." The show's producers said casting is under way and families in California are being sought to participate. The title of the show and its anticipated premiere date were not announced.