If you have some female friends who watches Ugly Betty and wants season 4 for a Christmas gift, walmart's website is advertising it for $16.93. However, if you go to Walmart, they will not honor that price and will claim it is some glitch on their website. So, just print the link I provided, bring it to Best Buy, and they'll beat it by 10%.
Original cost of the DVD set: $40
After Best Buy total: a bit over $15
http://www.walmart.ca/Movies-Music-a...-Season-on-DVD
BTW, this is not the only DVD title that has been rolled back and not honored by Walmart. You'll just have to dig through their site, print the price out and bring it to a competitor. I suggest Best Buy cause of their "beat by 10% policy"