EXHIBIT 12 CABLEVISION SYSTEMS CORPORATION COMPUTATION OF RATIO OF DEFICIENCY OF EARNINGS TO FIXED CHARGES AND EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (FIXED CHARGES COVERAGE DEFICIENCIES) Six Months Ended June 30, Year Ended December 31, --------------------- --------------------------------------------------------- 1995 1994 1994 1993 1992 1991 1990 ---- ---- ---- ---- ---- ---- ---- Earnings: Loss from continuing operations................. $(195,439) $(111,851) $(315,151) ($246,782) ($250,503) $(227,199) $(271,375) Add: Fixed charges per (B) below...................... 159,051 121,436 269,627 238,109 199,661 264,039 268,491 Amortization of previously capitalized interest....... 37 74 148 138 74 75 74 Deduct: Interest capitalized during period.............. -- -- -- -- -- -- -- --------- --------- --------- --------- --------- --------- --------- Earnings for computation purposes (A)............... $ (36,351) $ 9,659 $ (45,376) $ (8,535) $ (50,768) $ 36,915 $ (2,810) ========= ========= ========= ========= ========= ========= ========= Fixed Charges: Interest on indebtedness, expensed or capitalized, including amortization of debt expense............ 155,318 118,586 263,299 232,434 194,628 258,794 263,564 Portion of rents representative of the interest factor............ 3,733 2,850 6,328 5,675 5,033 5,245 4,927 --------- --------- --------- --------- --------- --------- --------- Fixed charges for computation purposes (B).... $ 159,051 $ 121,436 $ 269,627 $ 238,109 $ 199,661 $ 264,039 $ 268,491 ========= ========= ========= ========= ========= ========= ========= Ratio of earnings to fixed charges (A)/(B)............. -- -- -- -- -- -- -- Deficiency of earnings available to cover fixed charges..................... $(195,402) $(111,777) $(315,003) $(246,644) $(250,429) $(227,124) $(271,301) ========= ========= ========= ========= ========= ========= ========= Preferred stock dividends (C)............... $ 4,918 $ 2,054 $ 6,385 $ 885 $ 885 $ 4,464 $ 4,065 ========= ========= ========= ========= ========= ========= ========= Ratio of earnings to fixed charges and preferred stock dividends (A)/(B+C)... -- -- -- -- -- -- -- Deficiency of earnings available to cover fixed charges and preferred stock dividends............. $(200,320) $(113,831) $(321,388) $(247,529) $(251,314) $(231,588) $(275,366) ========= ========= ========= ========= ========= ========= ========= CABLEVISION SYSTEMS CORPORATION COMPUTATION OF PRO FORMA RATIO OF DEFICIENCY OF EARNINGS TO FIXED CHARGES (FIXED CHARGES COVERAGE DEFICIENCIES) Six Months Ended Year Ended June 30, December 31, 1994 ---------- ------------------ (Dollars in thousands) Earnings: Loss from continuing operations.......................... $(184,646) $(344,775) Add: Fixed charges per (B) below.............................. 141,377 273,547 Amortization of previously capitalized interest.......... 37 148 Deduct: Interest capitalized during period....................... -- -- --------- --------- Earnings for computation purposes (A).................... $ (43,232) $ (71,080) ========= ========= Fixed Charges: Interest on indebtedness, expensed or capitalized, including amortization of debt expense.................. 137,556 266,443 Portion of rents representative of the interest factor......................................... 3,821 7,104 --------- --------- Fixed Charges for computation purposes (B)................ $ 141,377 $ 273,547 ========= ========= Ratio of earnings to fixed charges (A)/(B)................ -- -- Deficiency of earnings available to cover fixed charges.................................................. $(184,609) $(344,627) ========= ========= Preferred stock dividends (C)............................. $ 25,993 $ 49,788 ========= ========= Ratio of earnings to fixed charges and preferred Stock dividends (A)/(B+C)................................ -- -- Deficiency of earnings available to cover fixed charges and preferred stock dividends................... $(210,602) $(394,415) ========= =========