The U68K series expands on picture quality and audio upgrades and makes the transition to the Google TV operating system. The U68K series adds HDR10+Adaptive and Dolby Vision IQ to its already long list of supported HDR formats. These technologies incorporate environment lighting considerations to their HDR interpretations making HDR more accurate depending on the ambient lighting in your room.Game Mode gets an upgrade to Game Mode Plus and adds variable refresh rate (VRR) at 60Hz for smoother gaming on next generation game consoles. With WiSA ready software, the U68K is now equipped to connect to the latest WiSA compatible speakers fora complete surround sound experience without the need for running speaker wires throughout the room. Creating even more robust audio and visual experiences, providing value without compromise.