In this Wednesday, June 27, 2012 photo, an unidentified 3-D TV operator checks camera settings for a 3-D production for ESPN 3-D Network at the Staples Center in Los Angeles. Only 2 percent of TVs in American homes were able to show 3-D last year, according to IHS Screen Digest. That's about 6.9 million sets out of 331 million installed. (AP Photo/Damian Dovarganes)

Associated Press
In this Wednesday, June 27, 2012 photo, an unidentified 3-D TV operator checks camera settings for a 3-D production for ESPN 3-D Network at the Staples Center in Los Angeles. Only 2 percent of TVs in American homes were able to show 3-D last year, according to IHS Screen Digest. That's about 6.9 million sets out of 331 million installed. (AP Photo/Damian Dovarganes)
In this Wednesday, June 27, 2012 photo, an unidentified 3-D TV operator checks camera settings for a 3-D production for ESPN 3-D Network at the Staples Center in Los Angeles. Only 2 percent of TVs in American homes were able to show 3-D last year, according to IHS Screen Digest. That's about 6.9 million sets out of 331 million installed. (AP Photo/Damian Dovarganes)
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