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  ===Ratings===
  "Kill the Boy" was watched by an estimated 6.56 million American viewers during its first airing. With Live+7 DVR viewing factored in, the episode had an overall rating of 9.35 million viewers, and a 5.0 in the 18–49 demographic. In the United Kingdom, the episode was viewed by 2.220 million viewers, making it the highest-rated broadcast that week. It also received 0.130 million timeshift viewers.