Harmonic Announces Audio Webcast Presentation at Merriman Curhan Ford & Co. 2nd Annual Investor Summit 2005

SUNNYVALE, Calif. - September 14, 2005 - Harmonic Inc. (Nasdaq: HLIT) today announced its presentation at the Merriman Curhan Ford & Co. 2nd Annual Investor Summit 2005 on September 19, 2005, at 9:30 A.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 5:00 P.M. (Pacific Time) on September 19 through September 26 at the same Web address.

About Harmonic Inc.
Harmonic Inc. is a leading provider of digital video, broadband optical networking and IP delivery systems to cable, satellite, telecom and broadcast network operators. Harmonic's open standards-based solutions for the headend through the last mile enable customers to develop new revenue sources and a competitive advantage by offering powerful interactive video, voice and data services such as video-on-demand, high definition digital television, telephony and Internet access.

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.