Jul 21, 1969
In the first ever pilot, two boys named David and Donald arrive in Sesame Street greeted by Gordon who finishes repaving the sidewalk. Since David and Donald's names both begin with the letter D, that became the main subject for the pilot. The in between segments of the pilot either featured words beginning with the letter D or just featured other educational topics like counting and singing the alphabet. Special guests include Superman, Batman, Carol Burnett, Gary Owens, and the music group "Listen My Brother".