S.C. Code § 58-12-510
When a subscriber notifies the cable or video service provider that he wishes to block video and audio and one or more blocked channels are transmitted due to equipment failure of the cable or video service provider, the cable or video service provider that uses digital transmission technology to deliver cable or video programming must immediately block the channels. When a subscriber notifies the cable or video service provider that he wishes to block video and audio and one or more blocked channels are transmitted due to equipment failure of the cable or video service provider, the cable or video service provider that uses analog transmission technology to deliver cable or video programming must block the channel within forty-eight hours after the subscriber notifies the cable or video service provider of the failed blocking. The time frames stated herein shall not apply if the cable or video service provider is unable to comply with them due to circumstances beyond the cable or video service provider's control.
S.C. Code § 58-12-510