Who was originally selling it for $8? WalMart will match anything, but so will other big box stores if you can prove to them you can pay less for it somewhere else. The only Wally World around here is in such a congested area I stay far away from it.
$2.00 an episode still seems high considering other deals out there I've mentioned before. A lot of the diminishing return will depend on how well you like the tv series too.