"Standard picture-tube TVs, the kind that the vast majority of Americans still buy, have long been video non grata at the Consumer Electronics Show. Seen as yesterday's technology, they have been relegated to the back room of the show, the industry's biggest gadget festival, where flat-panel LCD and plasma sets take center stage. But at this year's show in Las Vegas, picture tubes made a small comeback in thinner televisions designed to appeal to Americans' penchant for all things slim."This is really interesting. With these Flat CRT televisions costing far less than a typical LCD, it just might be the catalyst the finally pushes traditional CRT sets out our living rooms for good.