We have just set up a 40" KU6000 6 Series Flat UHD 4K Smart TV and set it up, it's on the lastest firmware but its not showing any HD channels. We are connected with aerial and we're in range of the Freeview HD channels with a strong signal. Any idea why its not working?
Have you tried a different aerial cable? What's the signal strength and quality of your other channels like? You can check this by heading to Settings > Support > Self Diagnosis > Signal Information.