BBC's Planet Earth was excellent this week - favourite section was the 1 metre wide, 24-tentacled, purple sunflower starfish hoovering up kilos of brittle stars and sand dollars (flat urchins) on the Californian seabed. Now that's what I call a show.
Should be repeated on the BBC a few times this week, worth catching, along with great whites snaffling seals, all sorts of coral, a jogging octupus.