A study shows the literacy skills of low-income children measurably increased after their participation in a curriculum using educational video and interactive games from PBS, according to SRI International, one of the firms that conducted the study. Nearly 400 children in 80 preschool classes in New York City and San Francisco participated. Some children learned up to 7.5 more letters than children in a comparison group during the brief, intensive curriculum. The games were from Super Why!, Between the Lions and Sesame Street, produced for PBS Kids as part of the Ready to Learn initiative. The evaluation was funded by the U.S. Department of Education and CPB, in partnership with PBS.