Press Release

Harmonic Announces Audio Webcast Presentation at Kaufman Brothers' 8th Annual Investor Conference

August 31, 2005

SUNNYVALE, Calif.--(BUSINESS WIRE)--Aug. 31, 2005--Harmonic Inc. (Nasdaq:HLIT) today announced its presentation at the Kaufman Brothers' 8th Annual Investor Conference on September 8, 2005, at 11:30 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 8:00 P.M. (Eastern Time) on September 8 through September 15 at the same Web address.

About Harmonic Inc.

Harmonic is a leading provider of innovative broadband solutions that deliver video, voice and data to communications providers around the world. Harmonic's technically advanced fiber optic, digital video and IP data delivery systems enable network operators to provide a range of interactive and advanced digital services that include high-speed Internet access, telephony, digital video, HDTV, video and audio streaming, and video-on-demand.

Harmonic is headquartered in Sunnyvale, California, with R&D, sales, and system integration centers worldwide. The Company has customers in over 40 countries on six continents, including many of the world's largest communications providers. For more information, visit www.harmonicinc.com.


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

    SOURCE: Harmonic Inc.