CES is still a TV conference. Even as the tech industry experiments with augmented reality, self-driving cars, and the outer limits of what you can embed in a refrigerator, everything in Vegas still revolves around the big screen. The 2018 crop mostly marches along the same path manufacturers have been following for decades: Everything's a little bigger and sharper, and there are new inscrutable acronyms everywhere you look. All in the hopes this is the year you finally spring for a new set.