Philips 56PFL9954H/12B User Manual page 197

4.4.1 Pixel Plus link
Some other 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.