From Edward R. Murrow to "Sixty Minutes" and CNN, the television news correspondent has become a fixture of American journalism in the latter half of the twentieth century. The correspondent's role has changed, however, as centralized control, changing technology, "infotainment," and profit margin have influenced the way that television networks operate and television news is reported.

In spite of the flood of literature dealing with the American television networks, the evening anchors, and prime-time personalities, little has been written about the "the foot soldier of network news."...