I like science fiction. Aside from westerns, it's easily my favourite genre, and that's mostly down to the lack of restrictions inherent to the definition, which allows for a larger range of stories to be told within the context. That sounds like a very douchey explanation, but it's true. With science fiction, not even the sky is the limit.
BBC America has put together a four part documentary, The Real History of Science Fiction, which will explore the history of the genre from it's origins in literature up to modern film and television (I wonder if it will touch on why some people still treat it like a second class genre). The series, narrated by Doctor Who writer Mark Gatiss, "determines why science fiction is not merely a genre… for its audience it’s a portal to a multi-verse – one that is all too easy to get lost in."
Via /Film.