Hi. I have a Philips 28DW6558. Its a digital tv. I dont get freeview in my area but every so often I check the digital tuner and scan for any new services. I went to do this the other day but when i switched to the digital tuner all i get is a blue screen. None of the buttons on the controller work and i cant get into the digital menu to scan for services. The analogue tuner still works fine. Does anyone know whats wrong?