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First, only a few episodes of this series are based on established scientific facts and knowledge, most of the others have gone into the realm of science fiction including computer-generated images of alien worlds and possible alien life forms and, and future sex in space CG effects?
The drums and bass sounds in the background and all the booms, bangs, hundreds of images coming in and out and shaking the screen in all episodes completely unnecessary and REALLY ANNOYING!!! Sometimes you cannot even hear the narration over the beats and bangs!
It's really tiring to watch this because of the shaking images and loud sudden unexpected sounds, the whole series is like a carousel of disaster!!!!
Also, the examples / demonstrations used to explain the phenomenons are repeating on an on, several times, practically the whole series time can be cut in less than half of actual scientific content.
It’s also irritating (as other users said) that the producers of this series have interruptions predicting death and destruction on Earth!! On all episodes, every few minutes - again and again and again and again....
History Channel! Redo this, put all series together and produce one great series out of these, by cutting out off the rubbish!!
When I ordered the complete season 1 of The Universe this product came up as a suggestion as to what other people buy at the same time. Looking at the details of the product it says it is the complete season 2. IT IS NOT. In fact it is just part of season 1. Best to buy the complete season 1 (on 3 discs).
Now noticed that this review has been allocated to season 2 incorrectly. To clarify, my review is regarding the large 6 DVD box set of season 1.
This isn't the complete season its only 3 quarters of the season so I would suggest not buying it instead buy the 3 disc season one as that's the complete season but it does have two episodes missing but its due to some restrictions or something from what the company had said there is more information about this on a another persons review which the review is on the 3 disc season
What a load of junk!!! all's this box set needs is that phoney guys from America's Most wanted with his bleached teeth and cowboy hat to ride an asteroid whipping a lassoo around his head and slapping criminal stickers on it...
This type of presentation has NO PLACE WHATSOEVER in a scientific subject...
If you would like something educational and still fun and approachable, try WOnders of the solarsystem, by Professor Brian Cox Wonders Of The Solar System [DVD] 
I am a physics professor, and I thought it would be cool to show some clips of this series to my students... But this series doesn't target a scientific crowd. Some images are neat, but the narration is downright childish.
For instance, when the narrator speaks of photons created at the center of the sun, the video spends five minutes showing a lame billiard balls analogy. I wanted to keep watching, but ugh... too painful.
Something to show to young high school students? Maybe. But a scientifically-aware crowd would just see this series as bad comedy.
Short on real information, the History Channel instead chose to focus on the perilous nature of the universe. The chapter on the sun, for example, features experts discussing how dangerous the sun is and the many ways the sun might kill off all life on the planet earth. What about more detailed information about what makes the sun tick.
If you enjoy the thriller on the edge of your seat type of programming, this is good. If you are looking for something more educational or scientific about our amazing universe, this is NOT the DVD.
I placed my order for Season one and was delivered an opened set without a security seal across the top of the Blu-ray box and without any shrink wrap. After reporting the problem, Amazon promptly shipped me another set in the same condition- only this time it was more painfully obvious by the condition of the set that I had received used and returned merchandise. When I reported the problem for the second time, I was notified by Customer Service that they would not be shipping me a new, unopened replacement because it was likely that I would not be satisfied with any order of this title due to problems in their warehouse. Amazon's outsourced CSRs have a hard time communicating beyond their scripts with their standardized responses and fake empathy. They have lost a formerly loyal, long-term, heavy-spending customer with shoddy merchandise and uncaring customer service. How do you give someone a gift of a Blu-ray series that has obviously been opened? Obviously Amazon isn't embarrassed to do it to me, but I have higher standards!