This is more fore my records, but maybe it will help someone out there.
If you need to bring up the configuration menu for a Philips flattv so you can tune it, or control the various config and security options you need to enter the below combination on your remote control.
319753 mute
a couple of seconds later the menu should pop up.
This is the standard way to bring up many of the configuration options and tuning setup on a wide range of Philips flattv’s