I remember watching this series on PBS with my father when I was a kid, Then reading the companion book years later. Carl Sagan was a brilliant scientist and had a way of presenting information in a way that is easy to understand and captivating. A great loss for the scientific community and mankind. I highly recommend his book "The Demon Haunted World". A very interesting perspective on human history.

I just want to state that I loved this because what I believe it was trying to do was achieved. I love science, art, history, economics, many subjects of human knowledge, but even with that drive to learn I sometimes forget how wonderful and inspiring the history of our acquisition of such knowledge is. I get caught up in daily life and responsibilities without giving my brain a moment to wonder for wonder's sake. Watching this reinvigorated my childlike wonder and amazement of life's beauties and complexities, which is, I think, a priceless facet of what makes human existence so precious. It is important sometimes to remember that there is a bigger picture beyond what microcosms our lives contain, and this show gives the viewer a chance at that shifted perspective. So to those who made this and programs like it, Thank you very much!! -Human Being

I just started watching Episode 1, and found four errors in the closed captioning in the first 45 seconds. Can someone who actually understands scientific terminology take a look a this? It's hardly worth watching a serious treatise on the nature of the universe when someone can't tell the difference between "where" and "were" ...

It's sad that after all the hard work done by scientists and mathematicians from Hypatia to Keppler to Darwin to Dr. Sagan, we now stand on the verge of a new Dark Age. Religion (mostly Christianity and Islam) is doing everything in its power to slow the progress of human knowledge once again. Science needs to be defended from the onslaught of superstition and ignorance.