It's that tv special hosted by 3-po and r2-d2 on how the saga of star wars is the story of skywalker I think. I didn't really like it, so I won't miss much if I don't buy it there.

This is the article that appeared on Dvdanswers for the exclusive:

Retail giant Wal-Mart has snagged an exclusive bonus DVD from Lucasfilm and 20th Century Fox that will come bundled with the November 1st release of Star Wars - Episode II: Revenge of the Sith. The disc, titled The Story of Star Wars, features the newly-created hour-long program chronicling father and son Anakin & Luke Skywalker, as told by R2-D2 & C-3PO. No word on how limited the disc will be, but you can bet I'll be there to pick up a copy on day one. Also of interest to Disney fans, Wal-Mart's release of Cinderella: Platinum Collection on October 4th will include the limited bonus CD "10 Favorite Disney Classics" featuring favorite songs from Aladdin, Cinderella, The Lion King, The Little Mermaid and more.