Mediacom Broadband 10-K 2011 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,
	2011		2010		2009		2008			2007
Earnings:
Income before income taxes	$	57,976	$	48,165	$	91,729	$	17,836		$	2,400
Interest expense, net		111,509		112,106		112,474		113,846			120,673
Amortization of capitalized interest		1,556		1,429		1,986		1,148			1,114
Amortization of debt issuance costs		4,345		3,992		3,560		1,856			1,989
Interest component of rent expense(1)		3,189		3,065		2,878		2,859			2,904
Earnings available for fixed charges	$	178,575	$	168,757	$	212,627	$	137,545		$	129,080
Fixed Charges and Preferred Dividends:
Interest expense, net	$	111,509	$	112,106	$	112,474	$	113,846		$	120,673
Capitalized interest		2,014		2,136		1,808		2,069			2,045
Amortization of debt issuance cost		4,345		3,992		3,560		1,856			1,989
Interest component of rent expense(1)		3,189		3,065		2,878		2,859			2,904
Preferred dividends		18,000		18,000		18,000		18,000			18,000
Total fixed charges and preferred dividends	$	139,057	$	139,299	$	138,720	$	138,630		$	145,611
Raito of earnings over fixed charges and preferred dividends		1.28		1.21		1.53					—
Deficiency of earnings over fixed charges and preferred dividends	$	—	$	—	$	—	$	(1,085	)	$	(16,531	)

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

1