Harmonic Media Storage and Processing Platform Provides Foundation for Tapeless Operations at New Globosat Facility

Brazil's Top Pay-TV Provider Installs Omneon MediaGrid(TM) and Spectrum(TM) Systems to Support Streamlined End-to-End Workflow

SAN JOSE, Calif. -- May 25, 2011 -- Harmonic today announced that the Canais Globosat Network, Brazil's leading pay-TV provider, has installed an Omneon media storage and processing platform to support an efficient tapeless workflow at the broadcaster's brand-new origination and distribution facility in Barra da Tijuca, Rio de Janeiro. Built on the Omneon MediaGrid(TM) active storage system, Spectrum(TM) media server systems, and MediaDeck(TM) video server, the Globosat workflow enables streamlined ingest, editing, and playout of the company's popular channel lineup.

"The Omneon MediaGrid and Spectrum systems offer not only the high reliability necessary to maintain the quality and continuity of our services, but also the interoperability needed to support integration with other best-of-breed systems in a smart, streamlined workflow," said Lourenço Carvano, technology manager at Globosat. "We are impressed with the many efficiencies the Omneon media storage and processing platform brings to large-scale ingest, editing, and playout operations."

Globosat reaches as many as 6.1 million individuals each day, broadcasting the majority of the 100 most-watched pay-TV programs in Brazil. To support these broadcasts, the company completed a state-of-the-art facility in Barra da Tijuca. At the heart of this facility, the company uses Spectrum media server systems to provide eight SD and HD ingest channels, as well as 30 SD and HD playout channels on fully redundant systems. Globosat also uses an Omneon MediaGrid system consisting of 26 2RU content servers for a total of 152 TB of total storage. Additional Spectrum systems and a MediaDeck video server will be used to support new channels and turnaround channels as Globosat grows.

Harmonic reseller Brasvideo worked closely with Globosat to specify many of the systems for the project. The resulting tapeless workflow enables ingest through the media servers and subsequent storage of content on the Omneon MediaGrid system. Nine Apple(R) Final Cut Pro(R) systems connected to the Omneon MediaGrid system enable Globosat staff to edit in place and then move content to main and backup Spectrum servers for playout while archives are maintained on the Omneon MediaGrid. The uniquely high bandwidth capacity of the Omneon MediaGrid can be scaled along with Globosat's growth to maintain fast access to stored content.

"Globosat is one of a growing number of Latin American broadcasters leveraging Harmonic's powerful solutions to bring greater flexibility and reliability to their operations," said Richard Phelps, vice president of Caribbean and Latin America sales at Harmonic. "The Globosat installation reflects the continued momentum of Harmonic adoption within emerging markets, as well as the ongoing implementation of our solutions at the center of advanced broadcast facilities."

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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.

This press release may contain 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: high reliability necessary to maintain the quality and continuity of services; interoperability needed to support integration in a streamlined workflow; unique, high bandwidth capacity; and greater flexibility and reliability.

Harmonic expectations and beliefs regarding the capabilities of Harmonic's Omneon media storage and processing platform and the anticipated benefits for Canais Globosat Network 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.

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