Harmonic's MediaPrism(TM) and ProView(TM) 7000 Earn Top Honors in BGR's Diamond Technology Reviews

Harmonic
Inc. (NASDAQ: HLIT | Quote | Chart | News | PowerRating) today announced that two of its products have
been honored for superior technical innovation in Broadband Gear
Report's (BGR) 2009 Diamond Technology Reviews. Harmonic's ProStream(TM)
4000, part of the MediaPrism(TM)
suite of tools for converged video delivery to any device, received a
perfect score of five diamonds. According to BGR, a five-diamond rating
indicates superb products that set new standards for performance and
provide groundbreaking technical milestones. In addition, Harmonic's ProView(TM)
7000 integrated receiver and stream processing platform received an
excellent rating with a score of four diamonds.

"The Harmonic MediaPrism Convergence Suite and ProStream 4000
Multi-Screen Transcoder garnered superlative rankings from this year's
Diamond Technology Reviews panelists for the solution's ability to help
operators resolve some of the most difficult integration issues
pertaining to the delivery of voice, video and data services to multiple
devices," Laura Hamilton, editor-in-chief at BGR, said. "They viewed the
platform as very timely as the industry moves to capture new revenue
from both fixed and mobile infrastructures."

The MediaPrism Convergence Suite with ProStream 4000 is the industry's
most comprehensive TV everywhere solution, providing operators with a
suite of tools for real-time and offline content creation,
transformation and multi-screen video delivery to the TV, PC, iPhone and
other mobile devices.

"The Diamond Technology Reviews judges applauded the Harmonic ProView
7000 Integrated Receiver and Stream Processor for its flexibility and
space-saving features. They were impressed by the combination of a
scalable video receiver, DVB descrambler, multi-format decoder and MPEG
stream processor into only 1-RU," continued Hamilton.

The ProView 7000 integrated receiver and stream processing platform,
receiving four-diamond recognition as an excellent product with
technical features and performance that provide clear and substantial
benefits, provides an ideal solution for digital turnaround processing
(DTA), descrambling and decoding operations. The ProView 7000 platform
features up to 2 DVB-S/S2 or 8VSB inputs, ASI and IP outputs in a
compact and cost effective 1-RU system that reduces system costs as well
as complexity.

This year's panel of judges included industry and engineering experts
from Armstrong, Cox Communications, Sunflower Broadband, Rogers
Communications, Charter Communications and Suddenlink.

Harmonic's unique and comprehensive portfolio of solutions that enable
cable operators to deliver an expanding range of advanced video services
will be on display at Harmonic's booth #11107 at the SCTE Cable-Tec
Expo, taking place in Denver, Colorado, from October 28-30.

About Harmonic Inc.

Harmonic Inc. is redefining video delivery with the industry's most
powerful solutions for delivering live and on-demand video to TVs, PCs
and mobile devices. Harmonic's 20 years of technical innovation and
market leadership enable the company to offer a unique and comprehensive
solution portfolio -- including encoding, transcoding, content
preparation, stream processing, asset management, edge processing, and
delivery. Broadcast, cable, Internet, mobile, satellite and telecom
service providers around the world choose Harmonic's IP-based digital
video, software, and broadband edge and access solutions. Using these
award-winning and industry-leading solutions, operators can reduce costs
and differentiate their services by offering consumers a higher quality,
personalized multi-screen experience.

Harmonic (NASDAQ: HLIT | Quote | Chart | News | PowerRating) is headquartered in Sunnyvale, California with
R&D, sales and system integration centers worldwide. The company's
customers, including many of the world's largest communications
providers, deliver services in virtually every country. Visit www.harmonicinc.com
for more information.

EDITOR'S NOTE -- Product and company names used herein are trademarks or
registered trademarks of their respective owners.

SOURCE: Harmonic Inc.

Harmonic Inc. 
Sarah Lum, +1-408-543-2392 (Media Relations) 
sarah.lum@harmonicinc.com 
or 
StreetConnect 
Michael Newman, +1-408-542-2760 (Investor Relations for Harmonic) 
hlit@stct.com

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