Harmonic Announces Audio Webcast Presentation at the JPMorgan 36th Annual Technology Conference

Business Wire, May 15, 2008

SUNNYVALE, Calif. -- Harmonic Inc. (Nasdaq:HLIT) today announced that Patrick Harshman, President and CEO, and Robin Dickson, Chief Financial Officer, will make a presentation at the JPMorgan 36th Annual Technology Conference on Wednesday, May 21, 2008, at 11:20 A.M. (Eastern Time). The live audio webcast of Harmonic's presentation will be available from Harmonic's website, www.harmonicinc.com, under the Investor Relations Events section. The replay will be available after 5:00 P.M. (Pacific Time) on May 21 through May 28 at the same Web address.

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 utilize Harmonic's digital video, broadband optical access and software solutions to offer consumers a compelling and personalized viewing 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.