Conversation so far:
what game of thrones book is season 7
Season 7 of Game of Thrones largely consisted of original content not found in George R. R. Martin's A Song of Ice and Fire series.
how many episodes are in the seventh season of game of thrones
There are 7 episodes in Season 7 of Game of Thrones.

Question: when did the season premiere
Self-contained rewrite: when did the season 7 of got premiere