I saw Star Wars in the theater three times when I was 6. Then BSG on TV. In school we had Bradbury in our reading books.
When I started to become an advid reader, I just went for what was lying around the house. Later people just gave me all of their paperbacks. This meant at 9 I was reading Ian Fleming's James Bond.(Which is why I hate most of the movies)
The thing is nobody gave me SF. SF was a TV and movie thing. When I was 23 I looked on a friends book shelf and said, "What's with the 15 books called Thieves World?" I proceeded to pillage his bookshelf. (that the same time I finally got into D&D)
My in genre reading is lacking, but I've read everything in my second hand store from Asimov, Heinlein, Clarke, Card, King, Thomas Tryon, and some others.