Big Bird's Birthday Celebration, or Eat My Cake, was a 1991 television special based on the legendary children's television show Sesame Street, in which Big Bird turned 6.
Up until this special, the character of Big Bird was only four years old. In this special, a five year old Big Bird celebrated his sixth birthday.
The program was aired by PBS as part of a pledge drive.
This special actually goes against the established plot line, as in the feature film Sesame Street presents Follow That Bird, Big Bird is described as being six years old, already.