It appears CBC has created a new liner that follows their shows on Radio 1. I heard it for the first time following "Under The Influence" on Thursday.
A fairly deep voiced announcer says "You're Listening To CBC Radio 1," followed by the usual musical sting.
Then he says, "Always Here For Canada!"
Interesting. Is this a response to the situation with the U.S. or a challenge to a potential change in the federal government that may result in its defunding? Either way, I don't think it's a coincidence, and you'll probably be hearing more of it as the days and weeks go by.