(Image credit: Sony) The name might sound meaningless: ATSC 3.0. But behind that opaque acronym is a world of improvements to over-the-air TV that brings 4K picture, premium sound and interactive features into your home for free. The Advanced Television System Committee (ATSC) is an industry group that determines the technologies used for broadcasters nationwide, and the ATSC 3.0 standard is the newest version of over-the-air TV. NextGen TV – the Consumer Technology Association's (CTA) remarkably anodyne marketing name for the new ATSC 3.0 standard – may not mean much to most people, but it's already available in much of the United States, and will play a big role in reshaping the modern TV experience.