(13) Waivers.—A subscriber who is denied the secondary transmission of a signal of a network station under subsection (a)(2)(B) may request a waiver from such denial by submitting a request, through the subscriber’s satellite carrier, to the network station asserting that the secondary transmission is prohibited. The network station shall accept or reject a subscriber’s request for a waiver within 30 days after receipt of the request. If a television network station fails to accept or reject a subscriber’s request for a waiver within the 30-day period after receipt of the request, that station shall be deemed to agree to the waiver request and have filed such written waiver. Unless specifically stated by the network station, a waiver that was granted before the date of the enactment of the Satellite Home Viewer Extension and Reauthorization Act of 2004 under section 339(c)(2) of the Communications Act of 1934, and that was in effect on such date of enactment, shall constitute a waiver for purposes of this paragraph.