In honour of it being the Melbourne Comedy Festival, I present: The Evolution of a Skit.
Remember the Four Yorkshiremen skit from Monty Python? Well it turns out it wasn't originally a Python Skit. The first version was on the At Last the 1948 Show, and featured John Cleese, Tim Brooke-Taylor, Marty Feldman and Graham Chapman.
The Pythons did it some years later, and it's pretty much the same. Here's a live version:
And then finally, here's a more recent live version, with Eddie Izzard, Harry Enfield, Vic Reeves and Alan Rickman. They updated it a bit, but it is still full of lolsome goodness.