Thanks to a resurgence of national interest in the World Series and a solid fall schedule, Fox appears certain to win the important November "sweeps" ratings contest for the first time. In fact, the network said on Tuesday, it will most likely win by the largest margin of any network in five years. Fox observed that while other networks saw their ratings drop by a significant factor during the sweeps period, its own are up some 20 percent from a year ago. On Monday, the network announced its mid-season schedule, which impressed analysts. Not only does it include the return of such hits as American Idol and 24 but also the debut of two promising additions, the game show Our Little Genius and the action drama Human Target.