After watching the Buffy: The Vampire Slayer musical (and, though wholly ignorant of pretty much everything [I'd seen the original movie, and that was about all], enjoying it very much), I found myself watching the Buffy marathon on Thanksgiving. And got completely sucked into it.
So now I have something else to suck up my time every week. At least the complete first season will be available soon on DVD, for an astonishing price.