CBC is the news organ of canadian public service and this the liberal party. There is no question of it's extreme bias, both for the liberals and their agenda and against others parties. And it's not just that they're "left" leaning, they are explicitly pro-liberal, as is the entire public service, because they've all got their faces in the government trough.

It's almost impossible to get real news in Canada. The only non far-left source is the National Post which is not particularly good and is partisan. But re CBC, I'd encourage people to look at their news, what they focus on and what they leave out, and decide how independent of the Liberals they are.