I'm a big Sci-Fi fan. While Asimov, Dick, Clarke, Vonnegut are all great, and I enjoy their work, I prefer newer stuff these days. Favorite authors include William Gibson, Bruce Sterling, Neal Stephenson, Nancy Kress, Greg Egan, and John Wright, who wrote the awesome Golden Age trilogy. Spider Robinson writes fantastic time travel stuff, and John Shirley...and...well, there's plenty of talent out there.
I've always enjoyed Sci-Fi tv and movies too, but nothing beats an epic book or series of books, IMO.
I don't see #39