In Search of Ancient Astronauts

Saw this for the first time on the "In Search Of..." DVD set, which can be found on the bonus disc. Rod Serling narrated this, and does a fine job presenting it in his matter-of-fact way, since he had such a unique voice, he was a perfect narrator, as was proved by "The Twilight Zone", though Rod does not appear on screen, which makes his job much easier!

This focuses on possible alien visitors being the "astronauts" that visited Earth, and may have helped humans along, with the Nazca lines being their landing strip, as it were. Speculative fiction, but interesting, if a bit dry. Worth watching at least once or twice, though not as memorable as the Leonard Nimoy series that followed.