This week Melissa and I finished our Buffy-DVD-marathon. It began in May. We watched all of seasons one through six just before the San Diego Con (122 episodes total). Season seven came out recently, and now we've watched all of that (22 episodes). And done.
Joss Whedon has redefined how we tell stories in pop-media. You can add him to a short list of writers who inspire me, challenge me, and make me want to write-- Akira Kurosawa, Douglas Coupland, Charlie Kaufmann, and Joss Whedon. Currently, I'm reading the Buffy script books, starting with season three, volume one. Great stuff.