io9 has footage of the recently-released pilot for a 1975 science fiction television show called Strange New World. It was based on ideas by Gene Roddenberry, and as you can see from just the first few seconds of the video, it borrowed heavily from the library of Star Trek sound effects. io9 has information about the pilot as well as additional video:
In Strange New World, three astronauts are sent up to a space station for an experiment into suspended animation. Why do they have to be in space to be put into suspended animation? It's never entirely clear. But while they're asleep, meteors threaten to make the planet all but uninabitable. So NASA decides to extend their sleep remotely, to 180 years. (There's nobody on their space station who's not in suspended animation, because why would you do that?)
So our heroes wake up 180 years later to find an Earth that's been reduced to ruins. We find all this out in a three-minute prologue that feels like an extended opening credits. And then our heroes ride their shuttlecrafts down to Earth, where they have two adventures. We'll call them "Plato's Stepchildren with Clones," and "The Omega Glory with Tigers." In the first one, our heroes are dressed up in togas for no particular reason, and trapped in a perfect society, which has one evil secret — involving clones!! In the second one, two tribes are fighting a centuries-old conflict as they descend into barbarism — and one tribe has tigers!