Did Robin Williams ever do any Muppet stuff?

[pgmatg]

This is all I found on the subject:
http://www.muppetcentral.com/collectibles/muppets/magazines.shtml
But you should ask my friend Linda about this, she's got the best Robin fan site.
I got one too: http://www.geocities.com/pgmatg/RobinWilliams.html

 

[ScooterRocks]

Living in Michigan, Robin Williams should have been on the Muppet Show, since he is from Michigan.Or Muppets Tonight would be funny! I can Imagine a
Flubber Muppet!

 

[GelflingWaldo]

Robin Williams also did a Sesame Street segment on how to tell if you're shoe is alive or not. I remember him watering it (to see if it grew) and putting a banana in it (to see if it ate), and then putting the wet banana-filled shoe back on. It was funny.