CBS just announced the addition of four new series to its 2006-07 primetime line-up. The four new shows feature a roster of award-winning actors and executive producers and a unique mix of concepts and genres. The freshman series include The Class, a young and sexy ensemble comedy; Smith, a high octane heist thriller starring Ray Liotta and Virginia Madsen; the apocalyptic drama Jericho starring Skeet Ulrich; and Shark, a glossy, high-stakes courtroom drama starring James Woods.