Press Release

Harmonic Announces Audio Webcast Presentation at the UBS 2007 Global Technology and Services Conference

November 8, 2007

SUNNYVALE, Calif.--(BUSINESS WIRE)--Nov. 8, 2007--Harmonic Inc. (Nasdaq:HLIT) today announced that Patrick Harshman, President and Chief Executive Officer, and Robin Dickson, Chief Financial Officer, will make a presentation at the UBS 2007 Global Technology and Services Conference on Wednesday, November 14, 2007, 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 Investors section. The replay will be available after 5:00 P.M. (Eastern Time) on November 14 through November 21 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.
             Chief Financial Officer
             Robin N. Dickson, 408-542-2500
             or
             StreetConnect
             Investor Relations
             Michael Newman, 408-542-2760

    SOURCE: Harmonic Inc.