Among the TVs, computers and cameras, this year's Consumer Electronics Show features "smart" appliances. One of the more interesting we've seen is Samsung's WF457 washing machine. In addition to a massive 4.5 cubic foot interior, it has the ability to be controlled by a smartphone app. It's also got a new dual-spray wash that's supposed to reduce wash cycle time by 25 percent. We're really looking forward to getting one in our lab and seeing if any of those features help it get stains out of clothes.