They already exist. I've been doing community programming for the past twenty years through Rogers Cable, and now through Shaw cable. Shaw cable has a list of criteria taken from the CRTC, and they won't broadcast something that is not within those criteria. They are more strict than the CBC right now. For instance, if I'm reporting a rally where there are some abusive signs, sometimes with my camera I just take the whole crowd, and I don't even notice what the signs say. But Shaw cable will censor that and say, “You have to cover that sign because it's not acceptable.”
On March 14th, 2007. See this statement in context.