Harmonic Announces First Quarter 2010 Reporting Date

Tuesday, April 13, 2010

 Harmonic Inc. (Nasdaq: HLIT) today announced that it plans to report its results for the first quarter ended April 2, after market close on May 6, 2010.

Harmonic will host a conference call to discuss its financial results at 2:00 P.M. Pacific (5:00 P.M. Eastern) on Thursday, May 6, 2010. A listen-only broadcast of the conference call can be accessed on the Company’s website at www.harmonicinc.com or by calling +1.706.634.9047 (conference identification code 50189705). The replay will be available after 6:00 P.M. Pacific at the same website address or by calling +1.706.645.9291 (conference identification code 50189705).

Harmonic intends to discuss financial and other statistical information on this conference call. This information will also be available on the Company’s website at www.harmonicinc.com either in the press release related to the above broadcast, by accessing the listen-only broadcast described above or by accessing the replay of the broadcast described above.

About Harmonic Inc.
Harmonic Inc. is redefining video delivery with the industry’s most powerful solutions for live and on-demand content preparation and distribution of video to TVs, PCs and mobile devices. Harmonic’s 20 years of technical innovation and market leadership enable the Company to offer a unique and comprehensive solution portfolio—including encoding, transcoding, content preparation, stream processing, asset management, edge processing, and delivery. Broadcast, cable, Internet, mobile, satellite and telecom service providers around the world choose Harmonic’s IP-based digital video, software, and broadband edge and access solutions. Using these award-winning and industry-leading solutions, operators can reduce costs and differentiate their services by offering consumers a higher quality, personalized multi-screen experience.

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.

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