NPD today released a new report highlighting the U.S. online digital video market for 2012, finding that Apple continues to dominate both purchases and rentals. In looking at purchased content, Apple holds a commanding 67% of the TV show market and 65% of the movie market, with its closest competitors Xbox Video and Amazon each holding roughly 10% of the market. While the competition is tighter in the rental market, Apple still holds a solid lead with 45% of the market for digital movie rentals, with Amazon taking second place at 18%.