Since it's the Bell beavers on half the time on the TEC screens, I really can see Rogers wanting to digitize out their own brands.
Rogers does this all the time on cable TV (which I stopped paying for several months ago now) on the cable stations - they put ads for Rogers and cable station promos over American ads on US-based cable stations. Comedy Network just layers over its bug and subsitutes its commericals over the live feed they're getting from Comedy Central for Stewart and Colbert. With both Rogers and Comedy Network, the commercial subsitution is sometimes screwed up, so some US commercials are shown and/or some content is lost when the subsitutions go overtime.
At the risk of going off-topic (and wanting to pull this back closer to the topic), I think it's possible, but not that likely - outdoor sessions for City (like on BT) are usually brief.