Philips 32PFL9604H - Manual (Page 184)

4.4.2 Audio sync
When a Home Theatre System is connected, the picture
on your TV and the sound from the Home Theatre System
should be syncronized. A mismatch is visible in scenes
with people talking. When they finish sentences before
their lips stop moving, you need to adjust the Audio sync
delay on the Home Theatre System.
Consult the user manual of the Home Theatre System.
In case you cannot set this delay in the Home Theatre
System or the maximum setting is insufficient, you can
consider to switch off the HD Natural Motion picture
processing of the TV.
Close this user manual and press h > Setup > Picture >
Perfect Pixel HD > HD Natural Motion.