Speaking of Wayne and Wanda, I just remembered that there was a later episode which I don't remember all the details of, but I do know they were looking back over Kermit's life, as in This Is Your Life. Two of the guests were Wayne and Wanda, who were upset because Kermit sacked them. Kermit couldn't remember why so he re-hired them and (instead of Sam) introduced them. But no sooner had they started to sing then he remember why he had sacked them in the first place and once again they ended up out on their ears!