August 21

===1973===
* Sesame Street Episode 0581 is taped.Documents provided by trusted source
===1974===
* Sesame Street Episodes 0672 and 0673 are taped.
===1989===
* Caveman Days: Trashcan, Camp Wannagohoma: Island and Waiter Grover: South America are taped.
===1995===
* Sesame Street Episodes 3399 and 3403 are taped.
===1997===
* Sesame Street Episodes 3666 and 3686 are taped.
==Sources==
__NOWYSIWYG__
 0821