The media are all gathered outside the caucus room. I’ve been flicking between TV stations and was watching Nine for a while. During that time, they had a shot of the media gathered outside the caucus room with a Seven reporter (update: it was Alex Hart) prominently in the foreground of the shot, on the phone to someone.
Whoever he was on the phone with must have told him that he was on the rival network as he stopped, turned to the Channel Nine camera, smiled, and waved.
Samuel