Ran into a clean instance of the Flames SN broadcast being inferior quality.
From the loss in Vancouver last week, here's the exact same frame from both the Flames and Canucks broadcasts:
http://i.imgur.com/UxDtaST.png
http://i.imgur.com/w5QWbBo.png
Open both in separate tabs and switch back and forth. The Canucks broadcast is noticeably sharper and higher quality. Not sure how this is possible given it should be the same feed before each broadcast adds their own graphics, etc.