Press Release

SUNNYVALE, Calif., Jan 10, 2002 (BUSINESS WIRE) -- Harmonic Inc. (Nasdaq:HLIT) today announced that it plans to report its fourth quarter and full-year 2001 results after market close on January 23, 2002.

Harmonic will also host a conference call to discuss its financial results at 2:00 PM Pacific (5:00 PM Eastern) on January 23, 2002. A listen-only broadcast of the conference call can be accessed on the Company's website at:

http://www.corporate-ir.net/ireye/ir_site.zhtml?ticker=HLIT&script=102 0&item_id=w,577872,0 or by calling 800-633-8741 (Reservation No. 17636776). A 48-hour replay will be available at the website address or by calling 800-633-8284 or +1 858-812-6440 (Reservation No. 17636776).

    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 & 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, 408/542-2500                
                  or
                  StreetConnect (for Harmonic)
                  Michael Newman, 408/542-2760

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