OTTAWA – Shaw Communications has told the CRTC it will implement high definition simultaneous substitution as the Commission has previously told it to. A December 7th letter to the Commission says the HD sim-subbing Shaw Cable and Star Choice weren’t doing, will begin being done by December 31st. Two weeks prior to that letter the CRTC set a January 15th, 2008 hearing date for Shaw to appear and explain its non-compliance. After a complaint filed by the Canadian Association of Broadcasters in June that said neither Shaw Cablesystems nor its sister satellite company Star Choice were performing their simultaneous substitution...