I've read a large amount of Asimov, Bradbury, Pohl, Clarke, as well as a wide variety of other grand masters and other writers. Sci-fi and fantasy are about all I read. I also watch a lot of sci-fi and fantasy movies & TV, but I watch more than that, too. While I have a wide range of interests and knowledge about this genre, I can't say I have a "complete" knowledge about it. There's a lot I haven't read and there's a few authors and sub-genres I don't like, actively staying away from them.