Wow! All three of 'em have some crazy sales this week, so many it goes beyond the scope of a listing! Swing by your local store and just pick up the weekly ad for yourself to see!
Or if you're too far from your nearest store for a quick drive like that, hit their Web sites. National weekly ads are always accessible from their Web sites.
All kinds of things on sale at all three - movies, PC games, music, electronics, and of course optical disc stuff.