ESPN and Discovery Channel announced plans this week to start 3-D networks, creating even more viewing opportunities for viewers just now adjusting to digital TV.
ESPN 3D will debut on June 11 with the 2010 FIFA World Cup match, while Discovery is teaming up with Sony and IMAX for first round-the-clock 3-D channel in 2011.
As always, there's a catch: Viewers will need 3-D-capable TV sets and possibly new set-top boxes, plus those fun glasses. And no one's saying whether viewers will have to pay more.
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