A:Answer The LG NanoCell 86 Series 4K 49 inch Class Smart UHD NanoCell TV w/ AI ThinQ® (48.5'' Diag), Model # 49SM8600PUA is a 2019 model and the LG NanoCell 85 Series 2020 49 inch Class 4K Smart UHD NanoCell TV w/ AI ThinQ® (48.5'' Diag), Model # 49NANO85UNA is a 2020 model. The 2019 model does not have HDMI 2.1ports while the 2020 model features two HDMI 2.1 ports. New for the 2020 models is the newer LG α7 Gen 3 Processor 4K with AI Picture & AI Sound, Dolby Vision IQ, support for VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode), HGiG Profile for HDR Gaming, AMD FreeSync™ Premium Gaming and eARC (Enhanced Audio Return Channel), Filmmaker Mode™, and Sports Alert Mode...^IFV