Kermit: It wasn't spooky like this when Julie Andrews did the show!
In Season three's Alice Cooper episode, Kermit mentions Julie Andrew's appearance, one of the first times an episode is mentioned later.
Sam the Eagle: Greetings. As an American Eagle, I feel it is my duty to say a few words about the glories of industry and technology. There are those among us (looks around) who would silence our factories, shut down our mills, and grind our highways to a halt. Yea, verily, today the very fiber of our industrialization is under attack from a small, subversive group of "nandy-pandy" conservationists. These WEIRDOS would stop the march of progress for the sake of a few insignificant animals. I have here a list! A list of the animals these so-called "conservationists" would have us protect. Just listen to this! The "Mountain Lion." Ha! The "Alligator." Ha! The "Coyote!" The "Timber Wolf!" Ha! The "American Bald Eagle--" (looks at list) The American Bald Eagle?? Th-this list is now inoperative. (walks away)
Waldorf: Hooray! Bravo! I loved the goat!
Statler: He would, the old goat.
Waldorf: He should quit while he's ahead.
Statler: Gonzo should quit while he's alive.