I was 11 years old when I saw "Where Have All The People Gone?" and it really left an impression on me. Other reviewers of this film here on IMDb seem to be sharing the same feeling; we were young and were privileged to see films like this one on TV at a time when they were just a bit more edgy. It's comforting to know there are others out there my age who seemed to appreciate these more cerebral films at such a young age! Other examples that have stayed with me were 1974's "Dying Room Only" with Cloris Leachman, and 1970's "The Neon Ceiling." These were very serious and even frightening scenarios, and even schlock films like 1973's "Horror At 37,000 Feet" and 1974's "Killdozer" were edgy, truly unique, and highly entertaining.
The idea of everyone in the world turning into dust from a bizarre solar flare type incident except a handful of survivors here and there really scared me. Like "Last Man On Earth," and "The Omega Man" before it and even "Night Of The Comet" and "The Quiet Earth" much later, it's a theme that will intrigue and never let go.
Peter Graves was a great choice for this film, and it was nice seeing Kathleen Quinlan too. You could just feel their dread as they went through a city and saw nothing but clothes on the ground where people used to be (particularly seeing a playground with children's clothes scattered about), and having to deal with dogs that seemed to be unaffected by the phenomenon, all running wild in the streets and quite vicious.
They just don't make 'em like this anymore. They can try, and with state of the art digital effects to boot, but it just seems you can't beat these early 1970's TV films that relied more on dramatic content, creativity, and substance rather than flashy effects. It seems many of us are all hoping to find "Where Have All The People Gone?" on home video and it would be a smart idea for whoever controls the rights for it to consider releasing it! It's a piece of nostalgia that still holds up today and just takes me back to a time when I really looked forward to something on TV.