ATSC 3.0: here’s how to get free over-the-air 4K channels with NextGen TV

June 21, 2020 – If you’re a cord-cutter, you need to know about ATSC 3.0 or, as it’s more creatively referred to on TV boxes, NextGen TV. Similar to what bunny ears and HD antennas offered a few years ago, ATSC 3.0 is a system of broadcasting 4K channels to your TV free of charge.