Planet Earth II looks so good on 4K Blu-ray that it completely justifies the existence of the doomed disc format. The original Planet Earth sold most consumers on the benefits of Blu-ray and HD video in 2007. It was like peering through a pristine window for the first time, after being stuck with muddy standard definition video for decades. This version of Planet Earth II, on the other hand, is like stepping through that window and into a whole new world of clarity.

Source: ‘Planet Earth II’ on 4K Blu-ray will make you want a new TV