The first episode of Sesame Street aired on Nov. 10, 1969. From the beginning, Sesame Street was like no other children's program. Human characters, often children themselves, interacted with the Muppets of Sesame Street. Arranged in horizontal rows, the stamps showcase 16 of the Muppets characters that appear on Sesame Street — Big Bird, Ernie, Bert, Cookie Monster, Rosita, The Count, Oscar the Grouch, Abby Cadabby, Herry Monster, Julia, Guy Smiley, Snuffleupagus, Elmo, Telly, Grover, and Zoe. Images of nine of the characters appear on the right side of the pane underneath the iconic Sesame Street sign. The back of the pane displays the Sesame Street 50th anniversary artwork.