Section 76.1709 - Availability of signals(a) The operator of every cable television system shall maintain for public inspection a file containing a list of all broadcast television stations carried by its system in fulfillment of the must-carry requirements pursuant to § 76.56 . Such list shall include the call sign, community of license, broadcast channel number, cable channel number, and in the case of a noncommercial educational broadcast station, whether that station was carried by the cable system on March 29, 1990.(b) Such records must be maintained in accordance with the provisions of § 76.1700 .(c) A cable operator shall respond in writing within 30 days to any written request by any person for the identification of the signals carried on its system in fulfillment of the requirements of § 76.56 . 65 FR 53621 , Sept. 5, 2000, as amended at 81 FR 10126 , Feb. 29, 2016