Exhibit 31.1
I, James L. Dolan, Chief Executive Officer of Cablevision Systems Corporation and CSC Holdings, LLC (the “Registrants”) certify that:
| 1. | I have reviewed this Amendment No. 1 on Form 10-K/A of the Registrants; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
| Date: | April 29, 2016 |
By: | /s/ James L. Dolan | |||||
| James L. Dolan | ||||||||
| Chief Executive Officer |