Walmart releases Black Friday ad

Walmart has released its Black Friday sales ad, joining a growing list of national retailers who have released their circulars early in an effort to snag holiday shoppers.

The ad is 40 pages, and shows the store will have three individual doorbuster events. The first one begins at 6 p.m. Thanksgiving Day, followed by a second event at 8 p.m. on Thanksgiving. The third event begins at 6 a.m. on Black Friday.