First, all of the crap these idiots espouse is their opinion and belief, not science. Nothing more. Usually they begin with, Ancient Astronaut Theorist believe, ... If you watch the show as a joke that it is, with that understanding, then it's a comedy. And it should belong on the Comedy Channel. As alternative reality it would belong on the Sci-Fi Channel. What is it doing on the HISTORY CHANNEL? So, The History Channel is passing these Blind Faith fools as experts and their nonsense as facts. It's a lie. We know that the history is written by the victors, that it is not perfect, but this show just makes stuff up.Second, I am no expert in astronomy, but I have read enough generally accepted science to realize that even if a life forms on a planet, chances that intelligent life will evolve, and then to invent communication and interstellar travel to our planet is slim to none. What this show does is pick and choose what science to believe in to support their beliefs. Science does not work that way. One astronomy author regarded acceptable science as intellectually honest, and that pseudoscience, such as these Ancient Astronaut Theorist are not honest. Please consider the life on our planet and the billions and billions of factors that lead to human evolution and our technological development. If even one of those factors were changed or eliminated, we may not be here. For example, if primates never evolved, no humans. If primates evolved and became extinct due to natural catastrophe, no humans. If the earth was just a little bit cooler or warmer at a certain point in its history, no humans. If the continents drifted to different locations, no humans. No humans and we have no conversation.I hate to burst the bubble of all these alien/ufo fanatics. But here we go. Sure there are billions of stars in our galaxy. Sure there are billions of galaxies in the universe. Maybe there are billons of universes. Who the hell knows? So, why can't there be life, intelligent life, communication, or visitation? Well, consider these generally accepted scientific theories:The big bang theory that the universe is around 13 billion years old, and that our sun is around 5 billion years old and has another 5 billion years left. The early universe created stars did not have enough heavy elements to create planets, let alone life. Only after these stars supernova, and formed new 2nd or 3rd generation stars, like our sun did planets have heavy material to form life. So, our sun had the right ingredients, heavy metals. Next you have to eliminate stars in binary systems, systems with more than one star. The planets would be volatile. It took our planet nearly 5 billion years to create intelligent life. Shorter life cycle stars can be eliminated for life. Larger stars will burn out quick and burn their planets. Smaller stars will not provide enough energy. The only example we have of life is our sun. So, as far as we know, a system would have to have to duplicate what our sun has done. If you have such a star, then you must look at the life zone of such a planet. Venus is too close, too hot. Mars is too cold and dry. Earth, so far is perfect. Also, take a look at the outer planets, Jupiter and Saturn. I'm no expert, but do these planets help stabilize the Earth's position in relation to the Sun? So, tons of factors brought us all here to even have this discussion. Imagine if plants did not evolve to give oxygen, no humans. All these elements had to be mixed in at the right time at the right proportions to bring us to this point on earth. These same factors must be duplicated on other planets to form life, intelligent life, technological development enough for interstellar communication, let alone travel to bring us face to face with aliens. Most alien/ufo believers do not consider what I have outlined above. They say look at all the billions and billions of stars. I say you're picking your facts for a pre disposed outcome. Most of those stars are already dark and dead. The distance between the stars are so vast. This isn't sci-fi. Ships don't travel at the speed of light or faster. You can't transport people from here to there with a transporter. Time travel does not exist. Time is a unit of measurement. Like a ruler. Or weight. Can you go back in time? No. Can you go back in ruler?So, History Channel, shame on you for this garbage. You've got some great shows, but this is not one of them.

God, this show is ridiculous! They don't get their facts right and they exaggerate things! "What if" "maybe" is all I hear. They overthink things when there's a more logical reason to why things happened. I actually do believe that Aliens exist, but this show is ridiculous and so stupid! Incredibly stupid! I watch this show when I'm bored and I still face palm. Why is this show on the "history" category? Why is this show on the channel History? I don't understand how this show has so many positive ratings! At first this show was so stupid that I just laughed, but now, it's not even funny. I'm giving it a 3 because of the visuals, they are quite nice plus, I like the Narrator's voice.

If you're truly secure regarding your intellect, there's nothing in this series that will spark dramatic mood swings. Just tell yourself...it's only opinion, and free speech won't make me melt.So how are 250 ton stones, carved to perfection, transported horizontally, lift to heights vertically and perfectly positioned? A community college professor in Wyoming carved a 15 ton stone, and he couldn't move it with logs, rocks or sand.Humans pulling ropes couldn't move massive tonnage.And the complexity of carved stones and perfect dimensions or fitting is shocking.Then all the pictures, art and writing that suggests that people long ago witnessed aliens and their crafts is interesting. Ancient Alien Theory is simply opinions that you file away in the back of your mind while you wait for more convincing evidence.

This "documentary" is the most pathetic thing I've ever seen.The "experts" are self proclaimed "ancient astronaut theorists", which are a bunch of lunatics that think everything was done by aliens.They keep asking... "what if?"... "is it possible"... and the answer is always "aliens".The basic assumption of the whole "documentary" is: "If someone drew it, it must be true... and it was because of aliens"I imagine if a draw today on a wall an elephant on skate boards with wings instead of ears a single horn on its back, a laser gun on its tail, and in 5000 years from now, some "ancient astronaut theorists" like Giorgio Tsoukalos find it. He will claim that was an Alien intervention that genetically modified elephants to create a hybrid cybernetic terminator species. Questions and answers: Pyramids, Aliens. Stonehenge, Aliens. Underground caves, Aliens. A earring in the shape of a bird which resembles an airplane, Aliens. A light in the sky, Aliens. A blackout in L.A., Aliens. Tesla inventions, Aliens. Big stones with inscriptions, Aliens. Founding Fathers of the U.S.A, Aliens. Drawings of a man with the face of a bird. A man with a mask maybe? No! A DNA experiment from... Aliens. Noah's Ark, Aliens. Virgin Mary being virgin, Aliens. etc.. etc.. Aliens!