For many, what they see on television becomes more true than what they see with their eyes in the external world. But this is not so, for one must never forget that every television and has been edited. The viewer does not see the event. He sees in edited form of the event. It is not the event which is seen, but an edited symbol or an edited image of the event. An aura and illusion of objectivity and truth is built up, which could not be totally the case, even if the people shooting the film were completely neutral.
Francis A. Schaeffer, How Should We Then Live? The Rise and Decline of Western Thought and Culture
bias, media, perception