You add the .idx file as the subtitle file. The .idx file itself points to the associated .sub file, so you don't have to tell ffmpegX about the .sub file. Note: this only works for encodings with the 'DVD mpeg2enc' preset and 'Decode with mplayer' activated.
Tonight is the night- Game of Thrones, season 6, premieres on HBO. The show begins at 8 p.m. CST, and will last for one hour.
Watch Game of Thrones Live with HBO Now. Since HBO Now has been released there are very few excuses left for not watching Game of Thrones and other HBO programs online through legitimate means. We hope this at least gives you a start at finding a way to stream and watch Game of Thrones on your own terms.