This is by far the best piece of 60's television that I have ever seen... and not only in the genre of sci-fi(sorry, Harlan, "fantasist") or episode of the original The Outer Limits. You can tell that it is by Ellison, and the part this(and the almost as good Soldier) played in inspiring The Terminator is impossible to ignore; I am a fan of Cameron, and I doubt he intended to plagiarize. The story is compelling, engaging, has stunning twists and turns and is smart without being convoluted or difficult to follow. This has amazing pacing, moves fast and keeps you on the edge of your seat the entire time, not overstimulating you at any point. The action is incredible, and this is exciting, suspenseful and tense throughout it. This has a chilling and unforgettable ending, and in spite of when this was made, nothing looks silly. The effects are rather well-done, and this was ahead of its time in its concepts and the way it explores them. This has excellent cinematography and editing. The acting is marvelous, and Culp, as well as everyone else, is spot-on. There is a bit of disturbing content in this. I recommend this to any and all fans of science fiction. 10/10