Televisions were a long slumbering product category. The "innovations" of recent years were the relative disappointment of Google TV and the commercial indifference to 3-D television sets. This year, however, 4K or UHD (3,840 x 2,160) television sets were the talk of the show. Television has had its best CES in years, led by incumbent television giants like Sony, Samsung, LG and Toshiba. With that, here's a look at the most tantalizing TVs on the CES 2013 show room floor.