Exhibit 3.485

State of Delaware

Secretary of State

Division of Corporations

Delivered 07:53 PM 04/19/2007

FILED 07:52 PM 04/19/2007

SRV 070456960 – 4337674 FILE

CERTIFICATE OF FORMATION

OF

TWC/CHARTER DALLAS CABLE ADVERTISING, LLC

The undersigned has executed and filed this Certificate of Formation as an authorized person in order to form TWC/Charter Dallas Cable Advertising, LLC (the “Company”) as a limited liability company pursuant to the provisions of the Delaware Limited Liability Company Act, and in connection therewith does hereby certify as follows:

1. Name: The name of the limited liability company (the “Company”) is TWC/Charter Dallas Cable Advertising, LLC.

2. Registered Office; Registered Agent: The address of the Company’s registered office in the State of Delaware is 1209 Orange Street, Wilmington, County of New Castle, Delaware 19801. The name of the Company’s registered agent at such address is The Corporation Trust Company.

Date: April 19, 2007

	/s/    Stacey m. Held
Printed Name: Stacey Held	Authorized Person

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