After the first number in the "Charles Aznavour", Gonzo tells Kermit "I...I noticed I haven't been in the last couple of shows". Hadn't he appeared in the final number of the Paul Williams episode? That always bothered me and I would consider it to be a goof on the writers' parts.
Welcome to the Muppet Central Forum!
Sesame Street debuts on Netflix
Back to the Rock Season 2
Sam and Friends Book
Jim Henson Idea Man
Bear arrives on Disney+