Now available in a shortened, 30-minute format, "Sesame Street" bridges many cultural and educational gaps with a fun program that is enjoyed by both children and adults. A PBS staple for more than 40 years, the classic series features a large cast of characters who teach young children numbers, colors, the alphabet and concepts. Big Bird, Bert & Ernie, Oscar the Grouch, and Grover are a few of the characters involved in this program, set on a city street full of valuable learning opportunities.