PBS President Pat Mitchell told a gathering of the network’s managers this week that she will step down when her current term expires in 2006. “Under Mitchell’s leadership, prime-time ratings rose to the highest ever and PBS stations extended their reach for digital broadcasting to over 89 percent of the country. Mitchell also added diversity to the schedule – including the ‘American Family’, an emmy-nominated series featuring a Latino family, and ‘American Mystery!’ a special featuring Indians living in the Southwest.”