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

Harmonic Announces Audio Webcast Presentation at Merriman Curhan Ford & Co. 2nd Annual Investor Summit 2005 SUNNYVALE, Calif.--(BUSINESS WIRE)--Sept. 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 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.

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