Sports broadcaster ESPN and the Discovery Channel plan to start their own three-D channels.

VOA: special.2010.01.08

Launched amid great publicity in 1993 as a subscription TV network offering CNN, the ESPN sports channel, Discovery Channel and HBO, it attracted fewer than 20, 000 customers.

CNN: ASIA'S NO PUSHOVER

Though by Breton's reckoning there had been ten documentaries about the birds and Project Puffin already--including shows aired on the National Geographic Channel and the Discovery Channel's Animal Planet--he felt there was more of the story to be told.

FORBES: Magazine Article

And just as network television did with successful law shows like Law and Order and CSI, Animal Planet--owned by Discovery Communications , which also owns Discovery Channel--spun their top show into a franchise: There are four shows--in New York, Houston, Miami and Detroit--about animal cops.

FORBES: Law & Order, Animal Edition