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However , he reverted to the original line during the show , and CBS executives were powerless to change it because the nature of videotape editing in 1967 required many hours of labor .
 organization: CBS
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: CBS