If the anchorman in "Broadcast News" had been based on Peter Jennings, it would have been a very different movie.
In the movie, the producers in the control room talk to the anchor in his earpiece, telling him what to say on the air. In the Peter Jennings version, it's the producers who would have worn the earpieces to get directions from the anchor. In the movie, it's the anchor who sweats. In the Peter Jennings version, the producers sweat. That was ABC's "World News Tonight With Peter Jennings."