Television news directors have a persistent nightmare: an unexpected event breaks while the news show is on the air. Even if a film-camera crew can be rushed to the scene, developed and edited film of the story is still more than an hour away. Setting up a conventional live camera and all its lumbering accessories is also slow business. The crash of two elevated trains on Chicago's South Side recently was a perfect example of what directors fear. It occurred shortly after 6 p.m. during the local stations' evening news programs. Yet WBBM-TV was...
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