4987
Beginning on November 26 , the series went nationwide on NBC until December 24 , after which it remained dormant until March 17 , 1950 when it was picked up by ABC until June 29 , 1951 .
 organization: NBC; organization: ABC
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 organization: NBC; organization: ABC