Philips 40PFL7664H User Manual page 197

5.7.3 Pixel Plus link
Some devices, DVD or Blu-ray Disc players, might have
their own picture quality processing. To avoid bad picture
quality from interference with the TV processing, the
picture processing of these devices should be discarded.
With Pixel Plus link you can discard this picture quality
processing.
Close this user manual and press h and select Setup >
Installation > Preferences > Pixel Plus link. Select On to
discard the picture processing from connected devices.