Exhibit 99.1

BigBand Announces Third Quarter 2010 Results

REDWOOD CITY, Calif., October 19, 2010 (BUSINESS WIRE) — BigBand Networks, Inc., (NASDAQ: BBND), a leader in digital video networking, today reported financial results for the third quarter ended September 30, 2010.

Revenues for the third quarter of 2010 were $26.8 million, compared to $22.2 million for the third quarter of 2009. GAAP net loss for the third quarter of 2010 was $7.3 million, or ($0.11) per share, compared to GAAP net loss of $10.9 million, or ($0.16) per diluted share, reported in the third quarter of 2009.

On a non-GAAP basis, the Company reported a net loss of $4.0 million, or ($0.06) per share, in the third quarter of 2010. This compares to a net loss of $5.9 million, or ($0.09) per diluted share, reported in the third quarter of 2009. Third quarter 2010 non-GAAP results exclude $3.3 million in stock-based compensation expense, $0.1 million restructuring benefits and related income taxes. Our non-GAAP results reflect the adjustments described in the Reconciliation of GAAP to non-GAAP Financial Measures attached to this press release.

The Company closed the third quarter of 2010 with $152.3 million in cash and marketable securities.

“Our third quarter financial results were in line with the outlook we provided on August 4. We continue to invest in our product portfolio and recently achieved major milestones, including the release of our next generation edge QAM on our multi service platform,” commented Amir Bassan-Eskenazi, President and CEO of BigBand Networks. “Our latest technology converges our QAM innovation with our media services platform to enable new services including personal TV, advanced advertising and highly efficient bandwidth management. We remain focused on bringing new products to market, expanding our geographic reach and improving our financial position going forward.”

Fourth Quarter 2010 Business Outlook:

For the fourth quarter of 2010, management provides the following outlook:

	•		Net revenues are expected to be in the range of $25.0 million to $28.0 million.
	•		GAAP gross margins are expected to be in the range of 50% to 52%.
	•		Non-GAAP gross margins are expected to be in the range of 52% to 54%.
	•		GAAP operating expenses are expected to be in the range of $21.0 million to $21.5 million.
	•		Non-GAAP operating expenses, excluding stock-based compensation expense, are expected to be in the range of $18.5 million to $19.0 million.
	•		GAAP net loss per share is expected to be in the range of ($0.09) to ($0.11).

•

Non-GAAP net loss per share is expected to be in the range of ($0.05) to ($0.07).

The following table shows our non-GAAP outlook for the quarter ending December 31, 2010 reconciled to our GAAP outlook.

		Estimated Loss per Share
		Low				High
GAAP net loss			($0.09	)			($0.11	)
Stock-based compensation and related income taxes			0.04				0.04
Non-GAAP net loss			($0.05	)			($0.07	)

Non-GAAP Financial Measures

BigBand reports all financial information required in accordance with U.S. generally accepted accounting principles (GAAP), but we believe that evaluating our ongoing operating results may be difficult to understand if limited to reviewing only GAAP financial measures. Many of our investors have requested that we disclose non-GAAP information because it is useful in understanding our performance as it excludes non-cash and other one-time charges or benefits that many investors feel may obscure our true operating results. Likewise, management uses non-GAAP measures to manage and assess the profitability of our business going forward and does not consider stock-based compensation expense and related taxes, or restructuring charges in managing our operations. Specifically, management does not consider these expenses/benefits when developing and monitoring our budgets and spending. The economic substance behind our decision to exclude stock-based compensation relates to these charges being non-cash in nature. We exclude restructuring charges, as they are one-time events. As a result, we use calculations of non-GAAP operating income, net income, net income per share and gross margin, which exclude these expenses when evaluating our ongoing operations and allocating resources within the organization.

As a result, our management believes it is useful for itself and investors to review both GAAP information that includes such charges and non-GAAP financial measures that exclude these charges because management believes such information enables readers of these financial results to have a better understanding of the overall performance of our ongoing business operations in the periods presented.

Whenever we use a non-GAAP financial measure, we provide a reconciliation of the non-GAAP financial measure to the most closely applicable GAAP financial measure. Investors are encouraged to review the related GAAP financial measures and the reconciliation of these non-GAAP financial measures to their most directly comparable GAAP financial measure.

Conference Call Details for October 19, 2010

BigBand Networks will host a corresponding conference call and live webcast at 2:00 p.m. Pacific Time today. To access the conference call, dial +1-877-941-8418 for the U.S. or Canada and +1-480-629-9809 for international callers. The webcast will be available live on the Investor Relations section of the Company’s corporate website, 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 4:00 p.m. Pacific Time on October 19, 2010 until 11:59 p.m. Pacific Time on October 26, 2010, by dialing +1-800-406-7325 or +1-303-590-3030 for callers outside the U.S. and Canada, and entering passcode 4373838#.

Cautionary Statement

The statements in this release regarding our continued investments in our product portfolio, the benefits from major milestones including our recently-announced next-generation QAM, our focus on bringing new products to market, expanding our geographic reach, improving our financial position going forward, and our GAAP and non-GAAP business outlook, as applicable, with respect to the quarter ending December 31, 2010 (including revenues, gross margins, operating expenses and loss per share) are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. These statements involve risks and uncertainties that could cause our actual results to differ materially, including, but not limited to: changes in demand for video services, the market acceptance of our new and existing products; our ability to develop our new products on a timely basis; the financial strengths of our current and potential customers; the fluctuations in our gross margins; the concentration of our customer base; competitive developments including pricing pressures; the timing of recognition of a significant portion of our net revenues given the complex systems integration involved; our ability to manage operating expenses effectively; the level of orders that are received and can be shipped in a given quarter; and the general economic, industry or political conditions in the United States or internationally.

For a detailed discussion of these and other risk factors, please refer to BigBand’s Report on Form 10-Q for the three months ended June 30, 2010. You can obtain copies of our SEC filings on the SEC’s Web site (http://www.sec.gov).

Stockholders of BigBand Networks are cautioned not to place undue reliance on our forward-looking statements, which speak only as of the date such statements are made. BigBand Networks does not undertake any obligation to publicly update any forward-looking statements to reflect events, circumstances or new information after this October 19, 2010 press release, or to reflect the occurrence of unanticipated events.

About BigBand Networks

BigBand Networks, Inc. (NASDAQ: BBND) provides broadband service providers with innovative digital video networking 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, advanced advertising, video-on-demand and interactive TV. BigBand Networks has done business with more than 200 customers — including seven of the ten largest service providers in North America — and leading cable and telco service providers in North America, Asia and Europe. 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.

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.

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BigBand Networks, Inc.
Condensed Consolidated Balance Sheets
(In thousands, Unaudited)

		As of September 30,				As of December 31,
		2010				2009
ASSETS
Current assets:
Cash and cash equivalents		$	11,108			$	24,894
Marketable securities			141,146				147,014
Total cash, cash equivalents and marketable securities			152,254				171,908
Accounts receivable, net			5,709				18,495
Inventories, net			11,879				4,933
Prepaid expenses and other current assets			3,845				6,177
Total current assets			173,687				201,513
Property and equipment, net			9,165				11,417
Goodwill			1,656				1,656
Other non-current assets			7,399				9,002
Total assets		$	191,907			$	223,588
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable		$	8,668			$	9,483
Accrued compensation and related benefits			5,234				5,023
Current portion of deferred revenues, net			21,031				32,428
Current portion of other liabilities			4,236				7,083
Total current liabilities			39,169				54,017
Deferred revenues, net, less current portion			9,251				12,438
Other liabilities, less current portion			1,819				2,642
Accrued long-term Israeli severance pay			4,691				4,215
Stockholders’ equity:
Common stock			69				67
Additional paid-in-capital			295,912				283,704
Accumulated other comprehensive income			279				124
Accumulated deficit			(159,283	)			(133,619	)
Total stockholders’ equity			136,977				150,276
Total liabilities and stockholders’ equity		$	191,907			$	223,588

BigBand Networks, Inc.
Condensed Consolidated Statements of Operations
(In thousands, except per share amounts, Unaudited)

		Three Months Ended September 30,								Nine Months Ended September 30,
		2010				2009				2010				2009
Net revenues:
Products		$	16,261			$	12,647			$	57,747			$	68,795
Services			10,490				9,555				27,632				36,321
Total net revenues			26,751				22,202				85,379				105,116
Cost of net revenues:
Products			10,208				8,211				33,534				34,193
Services			2,872				2,885				9,181				9,169
Total cost of net revenues			13,080				11,096				42,715				43,362
Gross profit			13,671				11,106				42,664				61,754
Operating expenses:
Research and development			12,432				11,698				39,034				34,308
Sales and marketing			4,483				6,009				16,531				18,313
General and administrative			4,024				4,612				12,560				14,109
Restructuring (credits) charges			(139	)			—				900				1,356
Class action litigation charges			—				—				—				477
Total operating expenses			20,800				22,319				69,025				68,563
Operating loss			(7,129	)			(11,213	)			(26,361	)			(6,809	)
Interest income			225				544				1,077				2,137
Other (expense) income, net			(134	)			31				(317	)			(62	)
Loss before provision for income taxes			(7,038	)			(10,638	)			(25,601	)			(4,734	)
Provision for income taxes			216				220				63				767
Net loss		$	(7,254	)		$	(10,858	)		$	(25,664	)		$	(5,501	)
Basic net loss per common share		$	(0.11	)		$	(0.16	)		$	(0.38	)		$	(0.08	)
Diluted net loss per common share		$	(0.11	)		$	(0.16	)		$	(0.38	)		$	(0.08	)
Shares used in GAAP basic net loss per common share			68,853				66,368				68,067				65,666
Shares used in GAAP diluted net loss per common share			68,853				66,368				68,067				65,666

BigBand Networks, Inc.
Reconciliation of GAAP to Non-GAAP Financial Measures
(In thousands, except per share amounts, Unaudited)

		Three Months Ended September 30, 2010
						Stock-based
		GAAP				Compensation				Restructuring				Non-GAAP
		Results				and Income Taxes				credits				Results
Net revenues:
Products		$	16,261			$	—			$	—			$	16,261
Services			10,490				—				—				10,490
Total net revenues			26,751				—				—				26,751
Cost of net revenues:
Products			10,208				(331	)			—				9,877
Services			2,872				(215	)			—				2,657
Total cost of net revenues			13,080				(546	)			—				12,534
Gross profit			13,671				546				—				14,217
Operating expenses:
Research and development			12,432				(1,257	)			—				11,175
Sales and marketing			4,483				(424	)			—				4,059
General and administrative			4,024				(1,063	)			—				2,961
Restructuring credits			(139	)			—				139				—
Total operating expenses			20,800				(2,744	)			139				18,195
Operating loss			(7,129	)			3,290				(139	)			(3,978	)
Interest income			225				—				—				225
Other expense			(134	)			—				—				(134	)
Loss before provision for income taxes			(7,038	)			3,290				(139	)			(3,887	)
Provision for income taxes			216				(84	)			—				132
Net loss		$	(7,254	)		$	3,374			$	(139	)		$	(4,019	)
Basic net loss per common share		$	(0.11	)										$	(0.06	)
Diluted net loss per common share		$	(0.11	)										$	(0.06	)
Shares used in basic net loss per common share			68,853												68,853
Shares used in diluted net loss per common share			68,853												68,853

BigBand Networks, Inc.
Reconciliation of GAAP to Non-GAAP Financial Measures
(In thousands, except per share amounts, Unaudited)

		Nine Months Ended September 30, 2010
		GAAP				Stock-based				Restructuring				Non-GAAP
		Results				Compensation				charges				Results
Net revenues:
Products		$	57,747			$	—			$	—			$	57,747
Services			27,632				—				—				27,632
Total net revenues			85,379				—				—				85,379
Cost of net revenues:
Products			33,534				(1,015	)			—				32,519
Services			9,181				(707	)			—				8,474
Total cost of net revenues			42,715				(1,722	)			—				40,993
Gross profit			42,664				1,722				—				44,386
Operating expenses:
Research and development			39,034				(3,944	)			—				35,090
Sales and marketing			16,531				(1,735	)			—				14,796
General and administrative			12,560				(3,272	)			—				9,288
Restructuring charges			900				—				(900	)			—
Total operating expenses			69,025				(8,951	)			(900	)			59,174
Operating loss			(26,361	)			10,673				900				(14,788	)
Interest income			1,077				—				—				1,077
Other expense			(317	)			—				—				(317	)
Loss before provision for income taxes			(25,601	)			10,673				900				(14,028	)
Provision for income taxes			63				41				—				104
Net loss		$	(25,664	)		$	10,632			$	900			$	(14,132	)
Basic net loss per common share		$	(0.38	)										$	(0.21	)
Diluted net loss per common share		$	(0.38	)										$	(0.21	)
Shares used in basic net loss per common share			68,067												68,067
Shares used in diluted net loss per common share			68,067												68,067

BigBand Networks, Inc.
Reconciliation of GAAP to Non-GAAP Financial Measures
(In thousands, except per share amounts and percentages, Unaudited)

		Three Months Ended September 30,								Nine Months Ended September 30,
		2010				2009				2010				2009
GAAP and Non-GAAP net revenues as reported		$	26,751			$	22,202			$	85,379			$	105,116
GAAP cost of net revenues as reported		$	13,080			$	11,096			$	42,715			$	43,362
Inventory recovery relating to CMTS platform			—				—				—				73
Stock-based compensation expense			(546	)			(562	)			(1,722	)			(1,521	)
Non-GAAP cost of net revenues		$	12,534			$	10,534			$	40,993			$	41,914
GAAP gross profit as reported		$	13,671			$	11,106			$	42,664			$	61,754
Inventory recovery relating to CMTS platform			—				—				—				(73	)
Stock-based compensation expense			546				562				1,722				1,521
Non-GAAP gross profit		$	14,217			$	11,668			$	44,386			$	63,202
As a percentage of net revenues:
GAAP gross profit as reported			51.1	%			50.0	%			50.0	%			58.7	%
Non-GAAP gross profit			53.1	%			52.6	%			52.0	%			60.1	%
GAAP operating loss as reported		$	(7,129	)		$	(11,213	)		$	(26,361	)		$	(6,809	)
Inventory recovery relating to CMTS platform			—				—				—				(73	)
Stock-based compensation expense:
- Cost of net revenues			546				562				1,722				1,521
- Research and development			1,257				1,346				3,944				3,566
- Sales and marketing			424				687				1,735				1,751
- General and administrative			1,063				1,210				3,272				3,460
Restructuring (credits) charges			(139	)			—				900				1,356
Class action litigation charges			—				—				—				477
Non-GAAP operating (loss) income		$	(3,978	)		$	(7,408	)		$	(14,788	)		$	5,249
GAAP net loss as reported		$	(7,254	)		$	(10,858	)		$	(25,664	)		$	(5,501	)
Inventory recovery relating to CMTS platform			—				—				—				(73	)
Stock-based compensation expense			3,290				3,805				10,673				10,298
Restructuring (credits) charges			(139	)			—				900				1,356
Class action litigation charges			—				—				—				477
Tax benefits (adjustments)			84				1,114				(41	)			(352	)
Non-GAAP net (loss) income		$	(4,019	)		$	(5,939	)		$	(14,132	)		$	6,205
Basic Non-GAAP net (loss) income per common share		$	(0.06	)		$	(0.09	)		$	(0.21	)		$	0.09
Diluted Non-GAAP net (loss) income per common share		$	(0.06	)		$	(0.09	)		$	(0.21	)		$	0.09
Shares used in Basic Non-GAAP net (loss) income per common share			68,853				66,368				68,067				65,666
Shares used in Diluted Non-GAAP net (loss) income per common share			68,853				66,368				68,067				68,619