BLUE PLANET II (4K UHD). See how gorgeous TV can be in this eye-popping sequel to the classic 2001 BBC docuseries. Employing what presenter David Attenborough calls "revolutionary technology," 4K ultra high-def visuals define each fish scale, each seabird feather, each mammal eye, and slow-motion ocean waters, from rolling waves to single droplets. There's even a seafloor fish with feet! In 4K's high-dynamic range HDR color, these creatures (corals are animals, too) emerge more vividly, against light shimmering with you-are-there immediacy. This is why you bought that 4K TV set. (You'll also need a true 4K disc player.) With bonus HD making-of hour, airing this Saturday to conclude BBC America rollout. List price $60 UHD/$45 Blu/$36 DVD, out this week from BBC Earth.
REBECKA MARTINSSON. More Nordic noir: Stockholm attorney (Ida Engvoll, "A Man Called Ove") visits her Arctic Circle hometown and finds murder, adapted with atmospheric flair from Asa Larsson's crime novels; $50 DVD, Acorn.
