“Firefly is about nine people looking into the blackness of space and seeing nine different things.” That’s apparently how Joss Whedon—creator of Buffy, Angel, and Dollhouse—pitched the show to Fox back at the beginning of the decade. Now, as we approach the end of the decade, I’ve finally watched it on DVD. And while I didn’t love it as arduously as others, I do understand the appeal. That pitch above is apt, because the main characters—the crew and passengers of the Firefly-class spaceship Serenity—and specifically the differences between them are make the show. Granted, the concept is cool: the show is a hybrid of two genres, sci-fi and western. Aside from the aesthetic appeal of the mash-up, it also united our past and a (possible) future to comment upon our present. The show is set in the future, after the two remaining superpowers on “the Earth...