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The show ran on NBC from September 16 , 1984 to September 7 , 1986 and again in first-run syndication from October 30 , 1987 to May 27 , 1988 .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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