It is official, I found it on wayback machine. https://web.archive.org/web/20120405080711/https://www.youtube.com/watch?v=DqZlGO28W-8

I had to watch all the way through the episode without fast-forwarding, due to using Wayback. Sometimes the video would stop and have to rewatch the video all the way through. While the video ran, I listened to some prog rock music. Then a couple of minutes ago, I saw the exact thing. For a bonus I saw the rest of the band fall in trashcans as well.

Now I recommend you should add sources to all other programs you took stuck headfirst scenes from that also have their links down. I already did one for you using the Wayback machine. It was the Jerry Lewis movie, Who's Minding The Store.

Thank you so much, I will delete the other repeat comments.

What show is this from?

Oh Actually through the Wayback Machine, I found out that this was from a movie called Whos Minding The Store.