The CRTC granted a request by Shaw Cablesystems Ltd. to revoke its broadcasting licence for the Sault Ste. Marie area of Ontario on Wednesday. Shaw Communications Inc. said in its application its terrestrial broadcasting distribution undertakings (BDU) serving Sault Ste. Marie had fewer than 20,000 subscribers as of the end of February. \u201cAccordingly, Shaw requests that the Sault Ste. Marie, Ontario licence be revoked, at which time this system will fall under and be regulated pursuant to the BDU Exemption Order,\u201d it said.\u00a0 The licence was last renewed in Sept 2018 and was set to expire on Aug. 31, 2023 Shaw will be acquired by Rogers Communications Inc. for $26.2 billion next year, pending regulatory approval.