Harmonic Appoints Susan Swenson to its Board of Directors

Tuesday, March 6, 2012

Harmonic Inc. (NASDAQ: HLIT) today announced it has expanded the Company’s Board of Directors with the appointment of Susan G Swenson. Ms. Swenson, 63, is a seasoned executive with a strong technology background in telecommunications. Ms. Swenson most recently held the position of president and chief executive officer of Sage North America, where she led the North American arm of the UK based The Sage Group PLC. During her impressive career she has held the role of president and chief executive officer of Cellular One and the role of chief operating officer at several firms including New/Motion/Atrinsic, Amp’d Mobile, T-Mobile USA, Leap Wireless International, Inc and PacTel Cellular.

Ms. Swenson has served on the Board of Directors of Wells Fargo since 1994 and joined the Board of Directors of Spirent PLC in February of 2012.

“I’m delighted to welcome Sue to our Board of Directors,” said Patrick J. Harshman, president and chief executive officer of Harmonic Inc. “Her background of successful executive leadership in the worldwide communications and software industries, combined with her extensive board experience, make her a strong addition to the Harmonic Board as we pursue our global growth strategy.”

About Harmonic Inc.
Harmonic Inc. (NASDAQ: HLIT) provides infrastructure that powers the video economy. The company enables content and service providers to efficiently create, prepare, and deliver differentiated video services for television and new media platforms. More information is available at www.harmonicinc.com.

Editor’s Note: Product and company names used herein are trademarks or registered trademarks of their respective owners.

This press release contains forward-looking statements within the meaning of Section 27(A) of the Securities Act of 1933 and Section 21(E) of the Securities Exchange Act of 1934, including statements related to Ms. Swenson’s expected contribution to the pursuit of our global growth strategy.

Our expectations and beliefs regarding these matters may not materialize, and actual results could differ materially from those projected. The forward-looking statements contained in this press release are also subject to other risks and uncertainties, including those more fully described in Harmonic’s filings with the Securities and Exchange Commission including its recent Reports filed on Form 10-K and Form 10-Q. Harmonic does not undertake to update any forward-looking statements.