Blowitoutahere via eBay offers Downton Abbey: Complete Collection Blu-ray for $67.94 with free shipping. That's the lowest total price we could find by $2, although we saw it for $12 less three weeks ago. It features a total run time of 3,045 minutes.
Need it in time for Christmas? Best Buy has it for $69.99 via in-store pickup. Orders placed by 4 pm local time today (Christmas Eve) can be picked up as late as 6 pm local time.