Mayor of Carrot City
Some of the CBC commentators are in Tokyo and others are in Toronto. I know Swimming and Track and Field are in Tokyo and Gymnastics are in Toronto.
I think a lot of commentators across the networks are not there in Tokyo. The female commentator on the women's cycling road race - which Sportsnet broadcast, using the Olympic in-house feed - Tweeted a picture of her "commentary booth" which was her laptop at home in Australia.