PLANET EARTH HONORED WITH PRESTIGIOUS PEABODY AWARD

(Silver Spring, Md.) � PLANET EARTH, Discovery Channel's critically-acclaimed high definition natural history series, was honored with a George Foster Peabody Award, announced today by the University of Georgia's Grady College of Journalism and Mass Communication. Chosen as one of the best in electronic media for 2007, PLANET EARTH was called "Awesome, spectacular, humbling, exhilarating�" by the Peabody board, and was spotlighted for its "majestic use of HDTV technology showcasing natural wonders of the world."

A co-production of Discovery Channel and BBC, the Emmy award-winning PLANET EARTH provides the ultimate portrait of our planet, documenting the daily struggle for survival in Earth's natural habitats. Filmed entirely in HD, the 11-part PLANET EARTH breaks new ground in filmmaking techniques, goes where no cameras have gone before, and reveals new animals and animal behavior.

The George Foster Peabody Awards recognize distinguished achievement and meritorious public service by TV and radio stations, networks, producing organizations, individuals and the World Wide Web. The awards program, established in 1940 and administered by the University of Georgia's Grady College of Journalism and Mass Communication, is the oldest, most prestigious honor in electronic media.

About Discovery Communications:

Discovery Communications is the world's number-one nonfiction media company reaching more than 1.5 billion cumulative subscribers in over 170 countries. Discovery empowers people to explore their world and satisfy their curiosity through 100-plus worldwide networks, led by Discovery Channel, TLC, Animal Planet, Science Channel, Investigation Discovery and HD Theater, as well as leading consumer and educational products and services, and a diversified portfolio of digital media services including HowStuffWorks.com. Discovery Communications is owned by Discovery Holding Company (NASDAQ: DISCA, DISCB), Advance/Newhouse Communications and John S. Hendricks, Discovery's founder and chairman. For more information, please visit www.discoverycommunications.com.