Twitter has become the unofficial second screen when it comes to watching TV, and it’s no surprise that HBO’s ‘Game of Thrones’ is one of the most-tweeted television shows on the air. This week, Twitter released a fascinating data visualization that shows how each episode was talked about on its platform, down to the characters and emoji used for them. For example, in the episode “The Door,” [warning: minor spoiler] there were naturally a lot of tweets about Hodor and his back story. You can also probably imagine the types of emoji many users tweeted associating with Hodor. The visualization also links…

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