That show began my appreciation of British humor. It's why I have a limited edition, collector's version of "Monty Python and the Holy Grail." Also, because I'm a dork. So it was only fitting that my hero, John Cleese*, could explain one of my pet peeves in a way that had escaped me all these years. Sure, I knew why what these people were saying was so wrong that it caused my internal editor to gag, choke, and possibly dry heave a little. But it took the perfectly eloquent Mr. Cleese and his Windows 95 clipart charts to explain it.
And since my current template tends to cut off the edges of videos, you might have better luck viewing it here.
* Thanks to the lovely and talented Annette for bringing this nugget of grammar gold to light.