Press Release

SUNNYVALE, Calif., Aug 05, 2008 (BUSINESS WIRE) -- Harmonic Inc. (Nasdaq:HLIT) today announced that Patrick Harshman, President and CEO, will make a presentation at the RBC Capital Markets 2008 Technology, Media & Communications Conference on Thursday, August 7, 2008, at 1:00 P.M. (Pacific 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 August 7 through August 14 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.

SOURCE: Harmonic Inc.

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