Shaw is digital not HD unless you pay for the HD channels. Digital does not mean it will be broadcasted in 16:9 format.
SD doesnt mean 4:3 either mate. Nor does HD necessarily mean 16:9. The formatting of the video is solely at the discretion of the transfer engineer/director/etc. All it means (in the case of HD) is the max width and height cant be over 1920 or 1080 for HD streams. PLENTY of 'HD' movies are transferred in their native format...and thus the bars at top and bottom to make them fit the 16:9 'frame'.
Plenty of SD content can also be filmed in 16:9 format (soaps were one of the first to do this). Hell plenty of SD videos were sold as either 'wide screen' or 'pan and scan' with multiple copies of each video floating around back in the VHS/DVD days. :thumb: