Great thread! I LOVE sci-fi/fantasy everything
Book-wise, my favorite author is Steven R. Boyett, favorite book is his "Ariel". I cut my teeth on Piers Anthony and Anne McCaffrey. Then I got into Mercedes Lackey (she and I share the common interests of falconry, parrots and horses) and I really love pretty much everything Steven Brust has ever written.
TV wise, I am a hard-core Farscape fan and I love the new Battlestar Galactica (watching it right now LOL).
My all time favorite movies would probably be Ladyhawke, Legend, Avatar and The Neverending Story.
I'm sure I am forgetting some, but I'm always happy to talk about science-fiction and fantasy