We did this last year with our LCD TV. Got the great Sears deal without having to fight for one....just by Ad Matching at Wal-Mart.
I am going to guess they are going to do this again this year. They have this as an ongoing thing (printed on all their ads), so I don't see why they would change it this year. According to my husband it's their policy to price match (as long as the item is identical), and it doesn't matter if it's a special sale.