Here are the dates for this year fall/winter to see: (I'd look at the days of the week and match to 2012 instead of looking at the actual dates)
Original Dates released early August?:
2011: 10/2-10/8, 10/23-11/5, 11/13-11/19, 11/27-12/3, 12/11-12/17
2012: 1/8-1/14, 1/22-2/4, 2/12-2/18, 3/4-3/10 and 3/25-3/31
Updated Dates changed last week (8/21 ish):
2011 - 10/1-10/6, 10/22-11/3, 11/12-11/17, 11/26-12/1, 12/10-12/15
2012 - 1/8-1/12, 1/21-2/2, 2/11-2/16, 3/3-3/8, 3/24-3/29
We were there the 2nd week of Dec in 2009 and again this year and will qualify for the FD. I will say that I lucked out this year. I booked to start on Dec 3 and got FD, but they changed it a few weeks later to Dec 1. Had I not booked right away I would have missed the window and had to check in on a Thurs instead of Sat. Keep an eye out for when you want to check in.