Well jeez, of course the CBC is biased. How could it not be? It's run by fallible human beings. Any source of news and information but the trivial is going to have a bias, no way around it. You just have to understand what the bias is, make allowances for it, and go to more than one source, while also understanding that you're biased as well.
I pay very little attention to television so I really can't speak to that, but the tuner on every radio around here is pretty much welded onto the CBC's frequency, mostly because commercial AM radio in Regina contains no information at all, it's all C&W music (which, sorry folks, I really hate, with a few notable exceptions) or very low grade talk radio run by people whose major purpose in life seems to be to provoke controversy, not facilitate useful exchanges. On the FM dial there are some good rock stations, but their information content is pretty much nil as well.
Ah, but CBC radio, now there's a noble and useful institution. It's generally inclined to be liberal (note the small l; it's not Liberal) in its editorial positions on the usual spectrum of how such things are defined, as most of Canada seems to be, according to the polls I hear about (and no, not just from CBC), and in my distinctly not very humble opinion it is one of the best and most useful and unifying cultural forces in this country. I think it's worth every penny it costs me as a taxpayer. Anytime I'm at home or in the car, CBC radio is on. If you really want to know what's happening in this country and around the world, there's no better source, and the CBC delivers it with wit, style, and grace. For commercial-free, high quality information and analysis, nobody does it better than CBC radio.
Edited 'cause I spelled a few things wrong. I hate it when I do that.