Discovery Channel Ranks #1 for Entertaining Programming According to Latest Beta Research Study

Investigation Discovery Is a Top Five Favorite Channel

(Silver Spring, Md.) Viewers ranked Discovery Channel number one in having entertaining programming, according to results of the 2010 Beta Research Cable Subscriber Study - Brand Identity of Basic Cable/Broadcast Networks. Also, for the eleventh consecutive year, viewers rank Discovery Channel first in having many original programs and series. The network also tied for first as a high-quality, informative and distinctive network and as a channel viewers would like to see in HDTV.

Investigation Discovery, America’s #1 network for growth among women 25-54 in ad-supported cable (excluding sports), also ranked in the top five as a favorite channel and #1 among female viewers age 18-49. Additionally, Animal Planet and Science Channel tied for #4 as a channel viewers would like to see in HDTV.

“These results show that viewers continue to recognize Discovery Channel as the industry leader in delivering the highest quality content,” said Bill Goodwyn, president, Domestic Distribution and Enterprises, Discovery Communications. “The study offers further proof that our commitment to building strong brands like Investigation Discovery resonates with key audiences and helps our affiliates drive value for their HD services.”

About Discovery Communications
Discovery Communications (Nasdaq: DISCA, DISCB, DISCK) is the world’s number one nonfiction media company reaching nearly 1.5 billion cumulative subscribers in over 180 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, Planet Green and HD Theater, as well as leading consumer and educational products and services, and a diversified portfolio of digital media services including HowStuffWorks.com. For more information, please visit www.discoverycommunications.com.