Best Buy has been in trouble the past couple of years. TL clients have felt the pressures at BBY, and combatting "showrooming" has become a major objective.
In addition, Best Buy will ship any out of stock item to the shopper's home for free.
BBY execs downplay the role of showrooming in this article; they certainly don't want to appear to be as big as it is. Obviously, it weren't such a problem policies like these wouldn't be necessary of profitable.
Also included are some great numbers and background on Toys R Us and Walmart for Holiday.