Press Release

Harmonic Announces Audio Webcast Presentation at the Needham & Company Telecom Tech Day

November 11, 2008

SUNNYVALE, Calif.--(BUSINESS WIRE)--Nov. 11, 2008--Harmonic Inc. (Nasdaq: HLIT) today announced that Robin Dickson, Chief Financial Officer, will make a presentation at the Needham and Company Telecom Tech Day on Thursday, November 13, 2008, at 2:15 P.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 6:00 P.M. (Pacific Time) on November 13 through November 20 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.


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

    SOURCE: Harmonic Inc.