BigBand Networks to Report Fourth Quarter and Year End 2007 Financial Results

January 29, 2008

REDWOOD CITY, Calif., Jan. 29, 2008—BigBand Networks, Inc., (NASDAQ: BBND), a leading provider of video networking solutions, today announced that it will issue a press release reporting financial results for the fourth quarter and fiscal year ended December 31, 2007, immediately following the close of the market on Thursday, February 7, 2008.

The Company will host a corresponding conference call and live webcast at 2:00 p.m. Pacific Standard Time on February 7, 2008. To access the conference call, dial +1.800.257.2101 for the U.S. or Canada and +1.303.205.0044 for international callers. The webcast will be available live on the Investor Relations section of the Company’s corporate website at www.bigbandnet.com, and via replay beginning approximately two hours after the completion of the call until the Company’s announcement of its financial results for the next quarter. An audio replay of the call will also be available to investors beginning at approximately 5:00 p.m. Pacific Standard Time on February 7, 2008 until 11:59 p.m. Pacific Standard Time on February 14, 2008, by dialing +1.800.405.2236 or +1.303.590.3000 for callers outside the U.S. and Canada, and entering passcode 11106774#.

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 info@bigbandnet.com or visit www.bigbandnet.com.