LG is all about product synergy at MWC 2013, demoing the ability to beam 4K resolution video from a phone to an Ultra HD television -- no wires necessary. There's no specifics mentioned about the technology in use other than that it uses "ubiquitous" WiFi connections, but LG claims its technique uses less than half the power others require. That's achieved by reducing the drain on the phone's CPU and other hardware, but we'll have to wait for a hands-on opportunity to learn more about how this works -- and to save up