Yes, amazingly enough, there are people in Canada who have large enough brains to think for themselves and not be force-fed the American media machine's view of what people in N. America should and should not watch.
Any brain-dead monkey can follow whatever the 3 big American stations churn out. But luckily, there are Canadians that realize that they live in CANADA and thus enjoy CANADIAN things.
And luckily there's enough of them, because the Grey Cup is ALWAYS the largest watched sporting event on TV in Canada. Over 4 million people every year. More than the Stanley Cup, more than the Super Bore, more than the "World Series", and certainly more than the NBA Finals.