Something I noticed while watching an episode of The Outer Limits a few years ago, was how similar the story was to Blade Runner. Problem was, this episode came out in 1964, and was based on a short-story by Clifford D. Simak from 1951! I'm surprised that other sci-fi fans haven't discovered this, yet. The episode in question is: "The Duplicate Man", based on the short-story "Goodnight, Mr. James". Check'em for yourself and you'll see the strong similarities. I'm surprised that Simak didn't go after PKD in court for this, as any other author (think Harlan Ellison) surely would've. Just something interesting that I thought I would share. Enjoy!
Could you explain? Based on the Wikipedia article for both the Outer Limits episode and what it quotes about the original Simak story I'm not really sure how this is similar to Blade Runner, or more importantly, <i>Do Androids Dream of Electric Sheep?</i>. Admittedly, wikipedia is hardly a complete source, nor a totally reliable one, so maybe you can elaborate?
It's easiest if you just watch the episode "The Duplicate Man". The whole idea of the duplicates, how they must die within so many hours or they will manifest human memories, killing a real human mistaken for a duplicate, etc. Too many similarities for it to be a coincidence.