Samsung has resisted the temptation to embrace HDMI 2.1, claiming the current 2.0b inputs do all that is needed of them. That might disappoint some, but the company claims the Q70 can handle 4K at up to 120Hz, dynamic metadata (HDR10+), variable refresh rate (VRR), and auto low latency mode (ALLM). The only thing missing is enhanced audio return channel (eARC), but Samsung says that will be coming via a software update by the end of the month.