A number of major retailers are out of stock of the second-generation Apple TV, suggesting that the set-top box may soon be replaced by a new model. Citing a Best Buy source, 9to5Mac reports that the retailer is out of stock at the source’s store, and will not be receiving any more units as Apple TVs are no longer shipping to the stores. Further checks of Best Buy’s online store, as well as those of Amazon, Target, and Buy.com all showed…
