Board Thread:General Discussion/@comment-4775130-20160926170627/@comment-24674051-20161102164902

And that right there (AoS taking 'advantage' of their later timeslot) is a good reason NOT to move Once to the late time slot. There are plenty of opportunities for this show to take a dark (game of thrones) type of turn, but I don't think that would be in the best interest of the show. and, as you point out, the later shows tend to be the grittier ones.

Also, note that AoS has sunk to the border of possibly being cancelled at the end of the season. The turn to the dark has really not done anything to help the show.