It seems to me that this is something that has to be considered and done by legislation and not on occasion, as one side or the other chooses. Given that linguistic duality is firmly a part of the CBC's mandate, it seems to me that there should be statutory meetings. Maybe there are. I'm not sure.
Evidence of meeting #47 for Canadian Heritage in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was cbc.
A recording is available from Parliament.