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As with many of his other business interests , Sky was heavily subsidised by the profits generated by his other holdings , but convinced rival satellite operator British Satellite Broadcasting to accept a merger on his terms in 1990 .
 Sky, British Satellite Broadcasting
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sky, British Satellite Broadcasting