Press Release

Harmonic Announces Audio Webcast Presentation at the UBS Tenth Annual Global Communications Conference

November 14, 2005

SUNNYVALE, Calif., Nov 14, 2005 (BUSINESS WIRE) -- Harmonic Inc. (Nasdaq:HLIT) today announced its presentation at the UBS Tenth Annual Global Communications Conference on November 16, 2005, at 3:00 P.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 5:00 P.M. (Pacific Time) on November 16 through November 23 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.

SOURCE: Harmonic Inc.

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