I never saw any of the Carl Sagan "Cosmos" TV series -- but I believe it's now available as a DVD box-set. I really must go out and buy that.
I recently finished reading Stoll's first book, The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage (thanks Kerry!) The man's fascinating. And his narrative attention span is worse than mine, for which I love him.