In this April 9, 2014 image released by the Sesame Workshop, Academy Award-winning actress Lupita Nyong'o, left, and character Elmo appear in a sketch for the children's program "Sesame Street"at Kaufman-Astoria Studios in the Astoria neighborhood of the Queens borough of New York. Sesame Street continues to attract millions of viewers after 45 years on the air, appealing to both preschoolers and their parents with content that is educational and entertaining. The show has kept up with the times by making its segments faster-paced, by fine-tuning messages, and by keeping a steady flow of appearances by contemporary celebrity guests. The show first aired Nov. 10, 1969. (AP Photo/Sesame Workshop, Jesse Grant)