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From 1948 until its cancellation in 1971 , the show ran on CBS every Sunday night from 8 – 9 p.m. E.T. , and is one of the few entertainment shows to have run in the same weekly time slot on the same network for more than two decades ( during its first season , it ran from 9 to 10 p.m. E.T. ) .
 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