High definition remote-operated cameras open a window to the wild in "Pearls of the Planet." This episode features polar bears on the Hudson Bay, beluga whales and other arctic wildlife, plus a look at the people working behind the scenes to deliver these incredible live portals into the world's natural cathedrals.

See Related: 'Pearls of the Planet: The Arctic' Reveals Life in Frozen North

KCET is Southern California Television