If you splurged on one of the many 4K TVs Sony released this year, you're likely in for a treat. Sony is expanding the reach of its high dynamic range (HDR) color update to include more sets. It was originally destined for just the X930C and X940C, but the upgrade is now slated to reach the X850C, X900C and X910C this fall. If you're one of the fortunate few in line for this image quality bump, you can expect more vivid colors, greater contrast and more details in both highlights and shadows.