Was Avery Schrieber once on Sesame Street?

[Pug Lover]

I know Avery Schrieber guest starred on The Muppet Show toward the end of it's first season.But I seem to recall a Sesame Street segment with him and Kermit.I'm not sure if it was the same guy or not.Kermit was sitting on one of those short stone walls,with Avery Schrieber[if it was Avery Schrieber]laughing himself silly,and telling Kermit that he was terrified.The only other thing I can remember about this skit was at the end,when Kermit went"GAGO GAGO GAGO"and scared Avery half to death.He appeared terrified for real this time,as he ran away screaming hysterically,and you heard a door slam behind him.Does anyone else remember this skit?