Press Release

SAN JOSE, Calif., May 14, 2014 (GLOBE NEWSWIRE) -- Harmonic (Nasdaq:HLIT), the worldwide leader in video delivery infrastructure, today announced that Peter Alexander, Chief Marketing Officer, will participate in the J.P. Morgan Technology, Media & Telecom (TMT) Conference in Boston on Monday, May 19, 2014 with a presentation at approximately 9:00 a.m. EDT.

A live audio webcast of the conference presentation will be available on Harmonic's website: http://investor.harmonicinc.com. The webcast will remain posted on Harmonic's website for 90 days from the presentation date.

Further information about Harmonic and the company's products is available at www.harmonicinc.com.

About Harmonic

Harmonic (Nasdaq:HLIT) is the worldwide leader in video delivery infrastructure for emerging television and video services. The company's production-ready innovation enables content and service providers to efficiently create, prepare, and deliver differentiated services for television and new media video 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.

CONTACT: Paulien Ruijssenaars
         Senior Director, Corporate Marketing
         Harmonic
         +1.408.490.7021
         paulien.ruijssenaars@harmonicinc.com

         Blair King
         Director, Investor Relations
         Harmonic
         +1.408.490.6172
         blair.king@harmonicinc.com