Hello , my name is Jack Perhaps I can help you with this problem but first i would have a few questions;
Is this tv connected to a cable box/set top box,satellite receiver, DVB converter etc ?
Could you please lookup your tv`s model number again located on the back cover ?
For some reason the one you gave us doesn`t bring anything.
Sorry , never mind the model number , got it now.
So if you could just answer these questions then we could proceed ;