The Wall Street Journal took the time to run down some of the latest trend in televisions, labeling sets "eco" or green for their energy efficiency. Every manufacturer at CES seemed to have a line of energy efficient HDTVs, and meeting or beating Energy Star requirements has suddenly moved to the front of marketing materials. Of course, sipping a little less juice incurs a price premium up front, adding $50 or so on Vizio's Eco line over comparable displays. Compared to last year when only 20% of flat panels had green features, manufacturers seem to be betting big on a shift to more efficient entertainment, but we're not sure how high that will be on customer's lists compared to price, features and picture quality.