Press Release

SAN JOSE, Calif., April 17, 2014 (GLOBE NEWSWIRE) -- Harmonic (Nasdaq:HLIT), the worldwide leader in video delivery infrastructure, today announced that it won multiple industry awards at the 2014 NAB Show, the world's largest electronic media show covering filmed entertainment and the development, management, and delivery of content across all mediums. Harmonic's VOS™ virtualized software media processing platform and VOS-based Electra™ XVM virtualized media processor both received the "Best of Show" award from TV Technology magazine based on their innovation, feature set, cost efficiency, and performance.

"We are thrilled to be awarded TV Technology's highest honors at the NAB Show for our involvement in shaping the future of video production and delivery," said Peter Alexander, chief marketing officer at Harmonic. "As video content providers and service providers look to increase operational flexibility while lowering operating costs, VOS and Electra XVM enable the smooth migration to software-defined, integrated media processing optimized for producing and delivering video content quickly and cost-effectively, with IT economics and amazing video quality."

TV Technology's "Best of Show" awards program recognizes outstanding new products showcased at the NAB Show. Entries are judged by a panel of engineers and industry experts. Harmonic's VOS and Electra XVM were chosen to receive the award from among hundreds of new products in competition.

Harmonic's VOS was selected as a winner for its potential to bring increased operational simplicity, flexibility, and efficiency to the media processing and delivery ecosystem. VOS enables completely virtualized media processing from a single software platform, encompassing historically discreet functions from ingest to playout, graphics, branding, compression, packaging, and delivery for broadcast and multiscreen applications. Operating virtually in IT data center environments, VOS can scale up or down to accommodate peaks in demand based on capacity and functional requirements across all video services. VOS includes Harmonic's PURE Compression Engine, providing ground-breaking video quality and bandwidth efficiency for SD, HD, and Ultra HD formats; MPEG-2, MPEG-4/AVC, and HEVC compression over CBR; VBR, and ABR streams.

Electra XVM is Harmonic's first product based on VOS. Electra XVM is an integrated package of VOS functionality, including the PURE Compression Engine, playout, advanced graphics, packaging, and delivery, and operates in data center environments on OpenStack or VMware vSphere environments for maximum operational flexibility. Virtual machine instances of Electra XVM can leverage data center capacity on demand according to the mix of codecs and formats used, from MPEG-2 SD to HEVC Ultra HD.

Further information about Harmonic and the company's products is available at www.harmonicinc.com.

About Harmonic

Harmonic (Nasdaq:HLIT) is the worldwide leader in video delivery infrastructure for emerging television and video services. The company's production-ready innovation enables content and service providers to efficiently create, prepare, and deliver differentiated services for television and new media video platforms. More information is available at www.harmonicinc.com.

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including statements related to the anticipated capabilities and benefits of Harmonic's Electra™ XVM product, VOS™ software platform, and PURE Compression Engine.Our expectations and beliefs regarding these products may not materialize and are subject to risks and uncertainties, including the possibility that the products do not meet some or all of their anticipated capabilities or provide some or all of their anticipated benefits, such as the shaping of the future of video production and delivery, the potential to bring increased operational simplicity, flexibility, scalability and efficiency, cost-effectiveness, ground-breaking video quality and bandwidth, the quick delivery of video content, and the enablement of a smooth migration to software-defined integrated media processing.

The forward-looking statements contained in this press release are also subject to other risks and uncertainties, such as those more fully described in Harmonic's filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended Dec.31, 2013, its Quarterly Reports on Form 10-Q and its Current Reports on Form 8-K. The forward-looking statements in this press release are based on information available to Harmonic as of the date hereof, and Harmonic disclaims any obligation to update any forward-looking statements.

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

CONTACT: Paulien Ruijssenaars
         Senior Director, Corporate Marketing
         Harmonic
         +1.408.490.7021
         paulien.ruijssenaars@harmonicinc.com

         Blair King
         Director, Investor Relations
         Harmonic
         +1.408.490.6172
         blair.king@harmonicinc.com