The role of the Governor General and the provincial Lieutenant - Governors has moved closer to the spotlight because of political maneuvering by the federal government and by provincial governments in Ontario and British Columbia. But what's a vice-regal representative to do? Here's the historical perspective, written by a respected professor of history, published in Canadian Parliamentary Review.
I'm not sure this video gets to absolutely everything that's ever happened, but it's worth looking at. Maybe a couple of times.