Original Extended Prologue to Buffy: Welcome to the Hellmouth?

Hey, does anyone have a copy of the original extended prologue in Buffy the Vampire Slayer's first episode: Welcome to the Hellmouth?

I lent out my video cassette more than ten years ago, and never got it back.

The prologue has a longer description of the Slayer's history, and never showed up on DVD's or Digital Services.

I'm just looking for it... it's sort of like that missing scene from the original Battlestar Galactica television premiere where Adama and Serena hold an extended chat: missing from subsequent digital history (and you only remember if you happened to be watching at the time).