This is the final season where Caroll Spinney provides the puppeteering for Big Bird due to Spinney being diagnosed with dystonia.
This is also the final season to air on PBS as the series moves to HBO beginning with season 46 though PBS continues to air reruns.
After this season Caroll Spinney only provides the voices of Big Bird and Oscar.
And this is the last episode when Frank Oz voices Bert, Grover, Cookie Monster, Harvey Kneeslapper and Lefty the Salesman.