Koos. By checking the product information of the Sesame Street doll, we can see that the color of the gray doll is Kaos, which is a car ornament Tron Tide ins style decorations cartoon animation toys. Sesame Street is a children's educational television program produced and broadcast by the Public **** Broadcasting Association of the United States, which first aired on November 10, 1969 on the National Educational Television Station (the predecessor of PBS).