IT'S CRIME TIME IN PRIME TIME ...

INVESTIGATION DISCOVERY EXPERIENCES BEST YEAR EVER IN PRIME DELIVERY WITH DOUBLE DIGIT GROWTH IN KEY DEMOS

--For Total Day, ID Ranks as #12 Network Among P2+, #8 Among P25-54 and #5 Among W25-54 --

(Silver Spring, Md.) - Investigation Discovery (ID) closed out 2014 with its best year ever in Prime delivery among all key demos, including P2+ (783k), HH (661k) P25-54 (355k) and W25-54 (236k), as well as in Total Day (6a-6a) delivery among P2+ (620k), HH (547k), P25-54 (303k) and W25-54 (205k). In 2014, ID also experienced double digit increases in Prime delivery among key demos, including: P2+ (+13%), HH (+13%), P25-54 (+13%) and W25-54 (+11%).

For all ad-supported cable networks in Total Day delivery ID ended the year strong as the #12 network among P2+, #8 among P25-54, and #5 among W25-54.

Since the beginning of 2011, 76 ID series have achieved a 1.0 HH rating in Total Day with the addition of the new series, Murder Book joining the ranks in December 2014.Other key programming highlights in 2014 included:

· The most recent season of Homicide Hunter: Lt. Joe Kenda (season 4) was the best performing season of the series since its launch in Prime delivery among key demos including P2+ (1.168 million), HH (1.01 million), P25-54 (478k) and W25-54 (306k).

· The premiere of Obsession: Dark Desires on Tue 1/28/14 at 10p broke the record for ID's best Primetime telecast ever for P2+ (1.474 million) delivery.

· The premiere of On the Case with Paula Zahn on Sun 2/23/14 at 10p was ID's best Primetime telecast ever for HH (1.215 million) delivery.

For the past three years, ID has been #1 in Total Day for Length of Tune in all of television among P25-54 and W25-54, with ID's Length of Tune in Total Day 98% higher than the average for all of television among P25-54, and 88% higher among W25-54. In 2014, ID maintains the #1 position in Total Day (48 min. P25-54, 52 min. W25-54) for Length of Tune in all of television, and is also #1 in Prime (28 min. P25-54, 30 min. W25-54).

2014 vs. 2013: Primetime Delivery
P2+ +13% (783k vs. 696k)
HH +13% (661k vs. 587k)
P25-54 +13% (355k vs. 313k)
W25-54 +11% (236k vs. 213k)

2014 vs. 2013: Total Day Delivery
P2+ +5% (620k vs. 591k)
HH +5% (547k vs. 523k)
P25-54 +6% (303k vs. 287k)
W25-54 +5% (205k vs. 196k)

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 more than 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.