What if the Muppet performers performed their characters voices on Muppet Babies, Little Muppet Monsters, and the animated Fraggle Rock?
What if Mel Brooks directed a Muppet movie?
What if Dave Goelz stopped performing after the first season to focus on building puppets?
What if Caroll Spinney performed on Fraggle Rock?
What if there were more Muppet specials (non-behind-the-scenes/non-Jim Henson tributes) after Jim Henson died?