Press Release

Rhozet Carbon Coder Chosen by Internet VOD Leader for Outstanding

Automation Capabilities and High Quality Video Output

SUNNYVALE, Calif.--(BUSINESS WIRE)--March 26, 2008--Harmonic Inc. (NASDAQ:HLIT) today announced that its market-leading Rhozet(TM) Carbon Coder(TM) video transcoding solution has been selected by Akimbo for automated web-based video transcoding and packaging.

Akimbo, an acknowledged leader and pioneer in Internet-delivered VOD, manages a vast library of mainstream and niche encoded video content acquired through its numerous relationships with content providers. Since this content comes from a variety of sources and in a range of formats, the challenge for Akimbo was to develop a process to easily collect and quickly transcode a large amount of content, while maintaining the highest video quality. Rhozet Carbon Coder has enabled Akimbo to create a web-based solution that is convenient for its partners to submit video, which is then automatically transcoded and sent to Akimbo's publishing system.

"At Akimbo we need a tool that supports the gamut of formats our content partners deliver to us, and that can quickly output high-quality compressed content ready to publish. With Rhozet's Carbon API, our engineers were able to easily automate the acquisition of new content, the transcoding, and the hand off to our content delivery network," said Seth Bennett, Director of Content Operations at Akimbo Systems.

"Akimbo is breaking new ground in the VOD arena, as is Carbon Coder," said David Trescot, Vice President of the Rhozet business unit at Harmonic Inc. "Carbon Coder's technical capability is just one of the important aspects of transcoding. The ability to address our customers' specific needs with a customizable solution gives us the upper hand in the market, while enabling our customers to grow their businesses."

Harmonic's Rhozet Carbon Coder is a universal transcoding application that facilitates the transfer of media between a variety of platforms, including acquisition, editing, playout, archive, the Internet and mobile devices. Carbon Coder can run as a stand-alone application or as part of a multi-node, fully-automated rendering farm. Carbon Coder provides high-performance, scalable and cost-effective transcoding for a broad range of business environments, from specialized studios to enterprise-scale installations.

About Akimbo

Akimbo provides a range of services to companies looking to implement TV-quality videos for download on demand over the Internet. Akimbo was named to the OnHollywood 100 by AlwaysOn in 2007, as well as in 2006.

Akimbo is located in San Mateo, Calif. and is funded by AT&T, Blueprint Ventures, Cisco Systems, Draper Fisher Jurvetson, Kleiner Perkins Caufield & Byers, Sprout Group, and Zone Ventures. For more information, visit www.akimbo.com.

About Harmonic Inc.

Harmonic Inc. is a leading provider of versatile and high performance video solutions that enable service providers to efficiently deliver the next generation of broadcast and on-demand services including high definition, video-on-demand, network personal video recording and time-shifted TV. Cable, satellite, broadcast and telecom service providers can increase revenues and lower operational expenditures by using Harmonic's digital video, broadband optical access and software solutions to offer consumers the compelling and personalized viewing experience that is driving the business models of the future.

Rhozet, a business unit of Harmonic Inc., is dedicated to providing accelerated high-quality media transcoding solutions. The Rhozet solutions are offered in both off-the-shelf and customized software configurations for the production and content delivery markets. For more information about Rhozet technology please visit www.rhozet.com.

Harmonic (NASDAQ:HLIT) 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.

This press release contains forward-looking statements within the meaning of Section 27(A) of the Securities Act of 1933 and Section 21(E) of the Securities Exchange Act of 1934, including statements related to: Akimbo and Carbon Coder breaking new ground in the VOD arena, and enabling our customers to grow their businesses.

Our expectations and beliefs regarding the capabilities of Harmonic's Carbon Coder solution and the anticipated benefits to Akimbo may not materialize, and actual results could differ materially from those projected. The forward-looking statements contained in this press release are also subject to other risks and uncertainties, including those more fully described in Harmonic's filings with the Securities and Exchange Commission including its recent Reports filed on Form 10-K and Form 10-Q. Harmonic does not undertake 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: Harmonic Inc.
             Sarah Lum, +1-408-543-2392 (Media Relations)
             sarah.lum@harmonicinc.com
             or
             StreetConnect
             Michael Newman, +1-408-542-2760 (Investor Relations)
             hlit@stct.com
             or
             Media Relations for Rhozet
             Sarah Kavanagh, +1-650-726-3482
             sarah@kavanaghpr.com

    SOURCE: Harmonic Inc.