The biggest hurdle, for now, still seems to be reliable 4K delivery. From the looks of things, Sony has decided against other options like curved displays or next-generation technology like Quantum Dot, too. Instead, it has put its full force into a pretty deep line of 4K sets that can fit in a small bedroom or look good in a home theater setup.
Sony is powering its smart TVs with its own processor, called the "4K Processors X1." Rather than explain why every product name has to have either an X or a 1 in it, Sony touted its ability to improve the color accuracy on its "Triluminos" display.
Models should become available in the Spring.