The 1985-1989 United States broadcast TV realignment consisted of a series of events that involved affiliation switches between major network stations that resulted from NBC becoming the most viewed network in the country, and began searching for stronger affiliates with higher ratings.


In 1977 and throughout the rest of the 1970s and into the early 1980s, NBC faltered in the ratings, in part due to the period when Fred Silverman was the network's president. ABC, which had become the highest rated television network in the United States, began searching for stronger affiliates across the country.

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