One of the most talked about innovations at the 2012 Consumer Electronics Show is a display technology called 4K, which essentially quadruples an HDTV's picture resolution—at a hefty $25,000 price tag.

The cost and lack of 4K-specific visual content means it'll be a while (if ever) before 4K resolution technology makes its way down to affordable TVs for consumers. But one other prospect the technology could bring: Better 3D TVs which can produce three-dimensional effects without requiring viewers to wear special eyeglasses!

Watch Consumer Reports video on Sony's 4K technology for more information and catch-up with the latest news from the 2012 CES trade show.