DirecTV, PBS and the Association of Public Television Stations (APTS) have entered a 10-year agreement that will bring the local HD feed of one PBS station in each DirecTV market to its customers. DirecTV will also carry two national (SD, unfortunately) PBS channels which can be "branded" with the local affiliate call letters. Rollout of the HD offerings will begin in 2008 and carry forward as PBS affiliates move to HD. This is great news for HD fans young (children's programming) and old (we're big on NOVA) alike, and makes PBS HD available to some 70% of U.S. TVs. Now we admit the kids we know never seem to care whether their show is HD, stretch-o-vision or pixel-vision, but where's Sesame Street HD?