Here's a teaser reel for a proposed cartoon based on Buffy the Vampire Slayer. The animation is surprisingly not terrible, but also has that Bruce Timm vibe that every cartoon after Batman: The Animated Series seemed to rely upon.
I'm also a little confused about where the producers thought this show would air, because it violates just about every ridiculous standard of "childrens television" within this three-minute clip. But it's also not sleazy enough for HBO, either.
Still, it's an interesting relic of a show that almost-was.