In the midst of all the talk of defunding CPB, here’s a letter to the editor to boost your spirits. Reader Jon M. Nelson wrote to the Lake County Record-Bee in Lakeport, Calif., asking for public support to bring PBS to the county two hours north of San Francisco. Nelson thinks PBS is an especially important educational source for the children of the county. He said an engineer from PBS affiliate KRCB in Rohnert Park, Calif., about 75 miles away, told him the equipment costs to pick up its signal would be around $25,000. “We need to get together to raise funds for this project of adding public broadcasting into our lives here in Lake County,” wrote Nelson, of Lucerne, Calif., population 2,900.