> Never update the OS. Unless there are new features or fixes you want. My TV needed updates to support Dolby Vision and to fix ARC/CEC bugs. More recent TVs

> Never update the OS. Unless there are new features or fixes you want. My TV needed updates to support Dolby Vision and to fix ARC/CEC bugs. More recent TVs have required updates to support HDMI 2.1 features. At least you can download the firmware separately and update through USB instead of a network update.