In a special sale, Best Buy is offering the
first,
second and
third seasons of the acclaimed television series
Dexter on Blu-ray for only $26.99 each (over 50% off MSRP). A banner at the top of this offer says that it is valid today only (and only online), but forum members have remarked in the past that that limitation does not apply here.
Thanks to forum member "giannirenna."