BigBand Networks Expanding Digital Television, HDTV for China's Zhongshan Cable.

Operator in Guangdong Province Leverages BigBand's "Headend-in-a-Box" to Expand Digital Video Services

REDWOOD CITY, Calif. -- BigBand Networks, Inc. (NASDAQ:BBND), a leading innovator in video networking, today announced that Zhongshan Cable is deploying its Broadband Multimedia-Service Router (BMR[R]) to process, manage and deliver digital television services, including HDTV and video-on-demand (VOD). Zhongshan Cable serves approximately 300,000 subscribers in the city of the same name, among the larger urban centers in China's Guangdong Province.

"We selected BigBand's platform for its powerful bandwidth management capabilities and its ability to perform so many key video processing and delivery functions in a single platform," said Mr. Zhuang Heng, the technical director of Zhongshan Cable. "When our deployment is complete we will be delivering more than 150 digital TV channels, including HDTV and VOD services."

Zhongshan Cable is using the BMR as a digital "headend-in-a-box," replete with a range of functionality designed to improve the video quality and bandwidth efficiency of the operator's television services. One such function--BMR's RateShaping[TM] capability--leverages advanced algorithms to allow Zhongshan to increase the amount of standard and high-definition digital video that can be delivered over its cable network without using additional bandwidth. The BMR also performs quadrature amplitude modulation (QAM), scrambling and acquisition functions to allow video content acquired from satellites to be delivered over Zhongshan's network with excellent picture quality.

"Zhongshan and other Chinese cable operators continue to move forward with advanced digital video services that will soon rival those offered anywhere in the world," said Johnny Cheung, BigBand's senior regional director of the Asia-Pacific region. "We look forward to continuing to introduce solutions that can expand the content and enhance the quality and user experience of video services in China."

For additional information about the BMR in Mandarin, visit http://www.bigbandnet.com/downloads/ bigband-bmr1200-datasheet-mandarin.pdf. (Due to its length, this URL may need to be copied/pasted into your Internet browser's address field. Remove the extra space if one exists.) For additional information in English, visit http://www.bigbandnet.com/index.php/bmr1200.html. For information about how to purchase a BMR in China, please contact BigBand Networks in Hong Kong at +85.2.3151.7304, in Beijing at +86.10.6512.6860 or in Shanghai at +86.21.6391.6125; or send email to [e-mail].

About BigBand Networks

BigBand Networks, Inc. (NASDAQ:BBND) provides broadband service providers with innovative network solutions designed to make it easier to move, manage and monetize video. These solutions are based on BigBand's video-networking platforms that are built to enable efficient and reliable delivery across a wide range of services, including digital TV, high definition TV, addressable advertising, video-on-demand and interactive TV. BigBand Networks' customers include more than 200 service providers--including six of the ten largest service providers in the U.S.--and leading cable and telco service providers in North America, Asia, Europe and Latin America. BigBand Networks is based in Redwood City, Calif., with offices worldwide. For additional information about the company, please call +1.650.995.5000, email [e-mail] or visit www.bigbandnet.com.

BMR and all other BigBand Networks' brand and product names are service marks, trademarks or registered trademarks of BigBand Networks, Inc. in the United States and other countries. All other marks are the property of their respective owners.

This release contains "forward-looking statements" as defined under the U.S. Federal Securities Laws, including the Private Securities Litigation Reform Act of 1995 and is subject to the safe harbors created by such laws. Forward-looking statements may relate to, but are not limited to the functionality, programming potential and other potential benefits to be derived by Chinese cable operators from the use of BigBand's BMR platform, forward-looking statements are based on current expectations that involve a number of uncertainties and risks that may cause actual events or results to differ materially. Factors that could cause actual events or results to differ materially include, among others, the following: rapid technological change that can adversely affect the demand for BigBand's products and solutions, design flaws in the solutions, shifts in customer demand, shifts in strategic relationships, delays in BigBand's ability to deliver or decisions to discontinue its products and services, or announcements by competitors. These and other risks may be detailed from time to time in BigBand's periodic reports filed with the Securities and Exchange Commission, copies of which may be obtained from www.sec.gov. BigBand Networks is under no obligation to (and expressly disclaims any such obligation to) update or alter its forward-looking statements whether as a result of new information, future events or otherwise. Information contained in our website is not incorporated by reference in, or made part of this press release.