Harmonic Announces Webcast Presentation at the Jefferies & Company’s 4th Annual Global Technology Conference

Thursday, March 4, 2010

Harmonic Inc. (NASDAQ: HLIT) today announced that Patrick Harshman, President and Chief Executive Officer, will make a presentation at the Jefferies and Company’s 4th Annual Global Technology Conference on March 9 at 8:30 A.M. (Eastern Time). The live audio webcast of the presentation will be available from Harmonic’s website, www.harmonicinc.com, under the Investor Relations Events section. The audio replays will be available after 6:00 P.M. (Pacific) on March 9 through March 16 at the same Web address.

About Harmonic Inc.
Harmonic Inc. is redefining video delivery with the industry’s most powerful solutions for live and on-demand content preparation and distribution of 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) 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.