INVESTIGATION DISCOVERY EXPERIENCES BEST MAY EVER IN PRIME AND TOTAL DAY

-- Year-to-Date, ID Maintains Position as Top Five Network for Women as the #3 Network Among W25-54 in Total Day --

(Silver Spring, Md.) - For L+3 delivery among key demos, Investigation Discovery (ID) just wrapped its best May ever in Prime among P2+ (827k), HH (686k), W25-54 (246k), P18-49 (279k) and W18-49 (195k), as well as in Total Day among P2+ (638k) and HH (549k).* Coming in only behind USA and HGTV, ID also continues to hold onto the #3 ranking network among W25-54 in Total Day.**

On the Case with Paula Zahn, Mail Order Murder and Fear Thy Neighbor were the top series performers for May, each of which averaged more than 1 million P2+.

ID continued its reign in Total Day as the #1 network for tune in all of television among P25-54 and W25-54.

About Investigation Discovery

Investigation Discovery (ID) is the leading mystery-and-suspense network on television and America's favorite "guilty pleasure." From harrowing crimes and salacious scandals to the in-depth investigations and heart-breaking mysteries that result, ID challenges our everyday understanding of culture, society and the human condition. One of our nation's fastest growing cable networks, ID delivers the highest-quality programming to nearly 86 million U.S. households and is available in both high definition (HD) and standard definition (SD). For more information, please visit InvestigationDiscovery.com, facebook.com/InvestigationDiscovery, or twitter.com/DiscoveryID. Investigation Discovery is part of Discovery Communications (Nasdaq: DISCA, DISCB, DISCK), the world's #1 pay-TV programmer reaching nearly 3 billion cumulative subscribers in 220 countries and territories.

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* Source: Nielsen, NHI Calendar, 1/27/08-5/31/15, L+3 Day data, Prime (M-Su 8p-11p) & Total Day (M-Su 6a-6a), Time Period Averages.

** Source: Nielsen, NHI Calendar, 12/29/14-5/31/15, Total Day (M-Su 6a-6a), L+3 Day data, W25-54 delivery, Time Period Based Averages, Ad-supported cable.