Aarcflick

 You would be forgiven for believing that "Our Planet" is just another "Planet Earth". Not only is it from the same creator as BBC America's flagship series on Alistair Fothergill, but it's also narrated by the soft tones of David Attenborough, the voice that has guided "Planet Earth" and its oceanic sister show "Blue Planet" for years. . . (Other narrators include Salma Hayek and Penelope Cruz, tapping to guide Spanish-speaking viewers in Latin America and Spain, respectively.) And just like "Planet Earth," the eight episodes of "Our Planet" focus on specific environments, from forests to the high seas to "frozen worlds" and beyond, with gorgeous, jaw-dropping shots of the most beautiful, intriguing, wildlife. inscrutable and astonishing of the Earth. But there's one crucial, stark difference between "Planet Earth" and "Our Planet" that makes the latter a more necessary update than it...