If you happen to be home and not busy at 6pm EST tonight, why not check out Firefly on the Sci-Fi channel.
Tonight they are airing the pilot episode Serenity in its entirety, starting at 6pm.
If you like what you see, buy the DVD! And get excited for the movie, opening September 30.
And you can even buy the comic! (I got the Jayne cover yesterday, I'm still looking for Mal and Inara.)