I'll know they're coasting on Muppet References when I see reference to the following:
"I seem to have lost my sense of direction"
"Oh? Have you tried Hare Krishna?" (or Harry Krishna, or Reverend H Krishna).
"That's a Myth! A Myth!"
(young lady pops into screen/view) "Yeth?"
"Right Frog!" (one of my personal favourites)
"Oh Kermie, whisper sweet nothings in my ear!"
"Sparkling Muskatel. One of the finest wines of Idaho"
"If I'm not funny I don't think I'll be able to live with myself."
"Well you'll just have to find another apartment then"
Or just go to the imdb quote page for the Muppet Movie. Classic lines