Zap2It.com reports that 'Eco-Challenge: New Zealand,' one of the world's premiere expedition races where contestants compete against the elements in a remote region of the world each year, will premiere as a four-night event April 21 to 24 in the eight o'clock block on USA Network. The entire Eco-Challenge will also be broadcast straight through on Sunday, April 28 from 9 a.m. to 3 p.m.

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