The Walgreens Black Friday ad has a dozen pages of discounts. The store opens at 9:00 a.m. on Thanksgiving Day; the first few pages of the ad are devoted to items for Turkey Day only.
You won't find HDTVs, but you'll find housewares, toys, some food items, and more.
According to Wikipedia, Walgreens is the largest drug retailing chain in the United States. As of January 31, 2012, the company operated 8,300 stores in all 50 states, the District of Columbia and Puerto Rico. Founded in Chicago, Illinois in 1901, Walgreens' headquarters are in the suburb of Deerfield.
Large images of the ad scans are available here.