A:Answer The LG 43 inch Class 4K Smart UHD TV with AI ThinQ® (42.5'' Diag), Model # 43UN7300PUF has a built-in ATSC 1.o tuner. It does not have the NEXTGEN TV (ATSC 3.0) tuner. Three of LG’s OLED series support NextGen TV in 2020, with a total of six models from which to choose. The GX or Gallery Series (55-, 65-, and 77-inch sizes), WX or Wallpaper series (65- and 77-inch sizes), and 8K ZX (88-inch size) are in LG’s top-tier and will support the feature, while the CX and BX models do not. The hardware to support NEXTGEN TV is built into these TVs. However, there is a software update required in order to active it, which will be automatically pushed out later in 2020. You will need to check with your local networks to determine when they will begin any NEXTGEN services as well, since this will also be a staged rollout...^IFV