This Thursday, Amazon has an interesting Blu-ray related deal of the day: up to midnight PST, you can order
Torchwood: The Complete First Season for $41.99, and
Torchwood: The Complete Second Season for $33.99 (58% off in both cases). The price history shows that this is the cheapest Season 2 has been, but Season 1 was slightly cheaper during another Deal of the Day a year ago (see Blu-ray.com,
December 21, 2009).
Update
This deal is now expired.