Mediacom Broadband 10-K 2010 FY Annual report

Exhibit 12.1

Mediacom Broadband LLC
Schedule of Computation of Ratio of Earnings to Fixed Charges and Preferred Dividends

	For the Years ended December 31,
	2010		2009		2008		2007			2006
Earnings:
Income (loss) before income taxes	$	49,832	$	94,840	$	20,663	$	5,274		$	(15,238	)
Interest expense, net		112,106		112,474		113,846		120,673			109,869
Amortization of capitalized interest		1,429		1,986		1,148		1,114			962
Amortization of debt issuance costs		3,992		3,560		1,856		1,989			2,622
Interest component of rent expense(1)		3,065		2,878		2,859		2,904			2,803
Earnings available for fixed charges and preferred dividends	$	170,424	$	215,738	$	140,372	$	131,954		$	101,018
Fixed charges and preferred dividends:
Interest expense, net	$	112,106	$	112,474	$	113,846	$	120,673		$	109,869
Capitalized interest		2,136		1,808		2,069		2,045			1,675
Amortization of debt issuance cost		3,992		3,560		1,856		1,989			2,622
Interest component of rent expense(1)		3,065		2,878		2,859		2,904			2,803
Preferred dividends		18,000		18,000		18,000		18,000			18,000
Total fixed charges and preferred dividends	$	139,299	$	138,720	$	138,630	$	145,611		$	134,969
Raito of earnings over fixed charges and preferred dividends		1.22		1.56		1.01		—			—
Deficiency of earnings over fixed charges and preferred dividends	$	—	$	—	$	—	$	(13,657	)	$	(33,951	)

(1) A reasonable approximation (one-third) is deemed to be the interest factor included in rental expense.