In what year did the episode "Eastwatch" from HBO's "Game of Thrones" air? 
2017
Title: Thronecast
Passage: Thronecast is a British television series on Sky Atlantic which is presented by Sue Perkins and Jamie East.  It is an aftershow to "Game of Thrones", which also airs on the channel.  Each episode is an hour in length and features interviews with members of the cast and crew, interaction with the audience and social media alongside analysis of the previous episode and a preview of the next episode of "Game of Thrones".  It was the only official aftershow for the American series until HBO aired "After the Thrones" in 2016 - a show which was cancelled after only one series.
Title: Game of Thrones (season 7)
Passage: The seventh season of the fantasy drama television series "Game of Thrones" premiered on HBO on July 16, 2017, and concluded on August 27, 2017.  Unlike previous seasons that consisted of ten episodes each, the seventh season consisted of only seven.  Like the previous season, it largely consisted of original content not found in George R. R. Martin's "A Song of Ice and Fire" series, while also incorporating material Martin revealed to showrunners about the upcoming novels in the series.  The series was adapted for television by David Benioff and D. B. Weiss.
Title: Eastwatch
Passage: "Eastwatch" is the fifth episode of the seventh season of HBO's fantasy television series "Game of Thrones", and the 65th overall.  The episode was written for television by Dave Hill, and directed by Matt Shakman.
Eastwatch Game of Thrones (season 7)