I don't think you can blame American media. Canada can trace its usage of Imperial units to the British Empire. The United States of America as an independen

I don't think you can blame American media. Canada can trace its usage of Imperial units to the British Empire. The United States of America as an independent nation has never at any point in its history used Imperial units. US Customary units share some of the names but it is a different system. This refinement of units continued globally and with international collaboration became the metric (si) system. The US historically had closer ties to France than Britain so the systems diverged literally centuries ago. Canadian metrication follows the rest of the British empire which was centuries behind the rest of the world (including the US) in metrication.