This seems to be an issue with all later Samsungs. I cannot be specific about the settings menu because they do vary from model to model. However the solution is to first power off the TV. The unplug all of the aerials from the TV. Turn the TV back on and go to the settings. Find the setting to scan for channels and request a scan. You will then get a screen asking what you want to scan for: terrestrial, cable or satellite. (It was this option that I never got previously as the TV always defaulted to a satellite scan only.) Plug your aerials back into the TV and select which signal source(s) you want to scan for. Hey presto all of the channels you are looking for become available!!!
