1687
Because stereophonic television had not yet been invented ( it would be 25 more years before it would become standard ) , ABC instead simulcast the show on its radio network , with the TV side airing one audio channel and the radio side airing the other ; viewers would tune in both the TV and the radio to achieve the stereophonic effect .
 organization: ABC
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: ABC