second source request broadcast units already sold to Goldman Sachs the main creditor The company entered creditor bankruptcy protection in late 2009 Shaw Communications has reached a deal with the main creditors of Canwest s broadcasting division to acquire control of that part of the company which has received court approval but not yet CRTC approval however a rival group including former CEO Leonard Asper as well as Goldman Sachs with which Canwest co owns several specialty channels are reportedly working to block the bid in favour of their own proposal