Press Release

Harmonic Announces Audio Webcast Presentation at Morgan Keegan's 2009 "Summer in the City" Technology Conference

August 6, 2009

SUNNYVALE, Calif.--(BUSINESS WIRE)--Aug. 6, 2009-- Harmonic Inc. (Nasdaq: HLIT) today announced that Robin Dickson, Chief Financial Officer, will make a presentation at Morgan Keegan’s 2009 “Summer in the City” Technology Conference on August 11, 2009, at 11:20 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 replay will be available after 6:00 P.M. (Pacific Time) on August 11 through August 18 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 video 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.

Source: Harmonic Inc.

Harmonic Inc.
Chief Financial Officer
Robin N. Dickson, 408-542-2500
or
StreetConnect
Investor Relations
Michael Newman, 408-542-2760