Anything with Kermit from the early days was fantastic, but his demonstration with the What Happens Next Machine was the tops to me. Usually it took another monster to mess up Kermit's lecture. This time he was done in by his own invention! His machine demonstrates (or was supposed to) what happens next to turn on his radio (it would've been much easier just to walk over and turn the darn thing on himself!), but not one component of the machine works!
He cuts the rope which should drop the sandbag- the sandbag remains stuck in the air.
He pushes down on the seesaw, seesaw remains stuck. (A squirt of WD40 would've fixed that).
Kermit opens the box, and even the balloon doesn't want to cooperate!
After a few kicks, the balloon flies up and switches on the radio (which is blaring the instrumental track of 'Roosevelt Franklin's Days of the Week' TOO COOL!!!)
Kermit announces his machine's a success, until the balloon floats away, taking the radio with it.
"What happens next is I have to get another radio!"
Then as a final punchline, the sandbag finally falls and smashes the seesaw in half with a loud crunch. Kermit finally gives up.
What happens next is we should all chip in and get him a Walkman.