Philips PIN code issue

Good evening everyone, as the title of this topic suggests: I have a problem with my Philips television because to set up the channels or even to revert to factory settings, I am asked for a PIN code WHICH I do not have and have never entered! Before asking for your help, I first tried to find the solution by myself online. I found different default PIN codes such as 8888, 1234 or even 0000, but to no avail! I am providing the exact model of the TV: 22pfh4109/88 from the brand Philips. Thank you in advance because with all this commotion about TNT, I am really fed up, especially since channel 7 Arte works on my set! I am missing some channels like 6, W9, etc.