Sesame Workshop

Originally founded by Joan Ganz Cooney and Lloyd Moririsett as the Children's Television Workshop, Sesame Workshop is a non-profit organization which has produced a number of educational children's TV shows including the following:
 * 3-2-1 Contact
 * Cro
 * Dragon Tales
 * The Electric Company
 * Ghostwriter
 * Pinky Dinky Doo, along with Cartoon Pizza
 * Sesame Street
 * Square One TV