In spite I don't share the framework on which this series is based, I mean, the extraterrestrial hypothesis in the way "extraterrestrial" is normally understood, I enjoy sci-fi a great deal, just as the James Bond movies that take you all over the world, and this series is fantastic in this sense.
But... the problem is that, I'm a Urantia Book reader, and so I know a quite different solution to that problem, which we don't know -from the scientifical point of view- NOTHING ABOUT: that is, our ancient history.
As some of the up reviewers put it, we need some archeological evidence from the scientific point of view to test that "extraterrestrial" hypothesis, as presented in the Ancient Aliens series.
The whole thing has a different solution, but for it, The Urantia Book must be, not just read, but understood, as in fact, things are much more complex and beautiful than the best of our sci-fi has ever imagined.
The "extraterrestrial theory" is twofold: it must consider EVOLUTION of mankind on one side, and on the other the principle of Intervention. In fact according to the Urantia Book, there is evolution but there is intervention too in that evolution of mankind, not only by an order called Life Carriers, but also by the combination or modification of our ADN two times in our past, about 500,000 year ago and about 37,000 year ago when Adan and Eve arrived to our planet to elevate us biologically.
In UB is written:
PAPER 58 - LIFE ESTABLISHMENT ON URANTIA
IN ALL Satania there are only sixty-one worlds similar to Urantia, life-modification planets. The majority of inhabited worlds are peopled in accordance with established techniques; on such spheres the Life Carriers are afforded little leeway in their plans for life implantation. But about one world in ten is designated as a decimal planet and assigned to the special registry of the Life Carriers; and on such planets we are permitted to undertake certain life experiments in an effort to modify or possibly improve the standard universe types of living beings.
1. PHYSICAL-LIFE PREREQUISITES
600,000,000 years ago the commission of Life Carriers sent out from Jerusem arrived on Urantia and began the study of physical conditions preparatory to launching life on world number 606 of the Satania system. This was to be our six hundred and sixth experience with the initiation of the Nebadon life patterns in Satania and our sixtieth opportunity to make changes and institute modifications in the basic and standard life designs of the local universe.
It should be made clear that Life Carriers cannot initiate life until a sphere is ripe for the inauguration of the evolutionary cycle. Neither can we provide for a more rapid life development than can be supported and accommodated by the physical progress of the planet.
The Satania Life Carriers had projected a sodium chloride pattern of life; therefore no steps could be taken toward planting it until the ocean waters had become sufficiently briny. The Urantia type of protoplasm can function only in a suitable salt solution. All ancestral life--vegetable and animal--evolved in a salt-solution habitat. And even the more highly organized land animals could not continue to live did not this same essential salt solution circulate throughout their bodies in the blood stream which freely bathes, literally submerses, every tiny living cell in this "briny deep."
So things as I said are much much complex according to the Urantia Book, and I am really convinced that it will explain many things about the mysteries of our ancient times.
Now I've finished seeing the whole season three and my main impression is that History Channel has presented a real metaphysics theory about our origins as in one hand, there is no scientific evidence about this theory, as it's a just working hypothesis, which does not make a science, and on the other being it a metaphysical theory, its greatest drawback is that it puts us very far from this real world, at the point that we must believe that even fire -a result of human evolution- was received from the "extraterrestrials". We owe them EVERYTHING!
PD: I hope, people from History Channel read this, as we from all over the world, have the right to know a quite different point of view!