The seven-episode series flexes its broadcaster’s mastery of a genre that it created. Over excellent footage shot on a circumglobal photo safari, the venerable narrator David Attenborough orates zoological narratives as if delivering a state-of-nature address.

It's a visually astonishing and riveting seven-part collection of images so surreal they almost feel like science fiction. ... Something like this doesn't happen overnight or come around very often. This is television as an educating device for the globe.

Blue Planet II is jaw-dropping. ... Instead of simply exhorting the Right Thing to Do, the show strives to create the awe and interest required to not just care about the fate of the world’s oceans, but to grow to love them, too. It’s working.

Its message, and the methods it employs to deliver it, makes this the most important television on right now.

There really cannot be enough praise for the series, which knows how important it is to engage viewers on both an emotional and intellectual level. The results are a riveting, often heartbreaking look at both the strength and fragility of the world’s oceans.

A worthy successor to the original, Blue Planet II also brings an urgent environmental warning that the first lacked: It demonstrates that the seas are in trouble and that the world must act.

Blue Planet II will be one of your favorite TV events of the year, and its deep dive beneath the waves of the world’s oceans will prove both soothing and engaging.

All the episodes are astonishing in their own way, but the second one is beyond imagination. If someone would have told me "this is a movie made in Computer Graphics" i would believe him. It's just incredible. What they show and how they show it makes it a unique experience. I've never seen anything like this before (and i'm a biologist).

Spectacular! The way that they show animals and nature is absolutely breathtaking. If you find comfort or interest in animals and nature, do yourself a favour and watch this. You will not regret a second of it.

If you only watch 1 documentary all your life, Blue Planet II should be the one. Science, art, and education... And the profound beauty of our world!

If television can be essential beyond itself, this is it. Blue Planet II does more than educate or even inspire. It reveals new worlds--biological, social, and, hopefully, moral. Astounding.

TV shows just can't write what nature provides sometimes. Some of the pieces are not just visually jawdropping but make you think about so many things, like the clown fish and grouper that risk it all to be able to procreate, and the fish that uses tools (a rock) to open a clam, or seeing the corral reefs of so much beauty and then seeing the destruction we humans have caused to them. This should be must watch TV in every school on the planet, period. PERIOD.