In spite of the studio withholding screeners that are vital to avoid just this position, it appears the first episode of Game of Thrones Season Six has leaked online ahead of its planned release tonight.
It is likely that the escape came via cable or a streaming service on-demand service, which have been the source of escapes that are similar lately, including the season five midseason premiere of The Walking Dead.
A High Definition copy of the episode was made accessible by error for several hours before being taken back down. That opinion may be backed up by French subtitles on purported spoiler pictures on Reddit and Imgur.
Spoilers abound on fan newsgroups and social media, especially Reddit, although online services happen to be swift to remove the alleged bootleg from the internet. Beware, so if you are getting excited about seeing tonight.