Following either of the two options above, you need to do a manual re-tune. The aerial lead will then need to be put back in again. This will clear the memory and remove the unwanted, stored channels. Do an auto-tune with the aerial lead removed.Press ‘OK’ if your equipment asks whether it is OK to delete existing channels. Sometimes manufacturers refer to this as 'first time installation' or 'shipping condition'. Perform a factory reset - from the tuning menu as described in your manufacturer’s instruction manual. T his may be because your receiver still has wrong channels stored in its memory. It tunes to the first channel it comes across, even if they are weaker signals from the wrong transmitter. When a television set auto-tunes, it automatically starts from the bottom of the channel or frequency range and works upwards. Some locations are within range of multiple transmitters. Both are done using your remote control. An auto-tune allows the television set to tune to services from any transmitter that it can receive. A manual re-tune allows you to input and store, one by one, only the correct channel numbers or frequencies for the transmitter your aerial is pointing towards. There are two types of tuning, automatic or manual. It will check for faults in your area, help you select the transmitter you are using and you can find the channel numbers or frequencies you need to manually retune.
Enter your postcode in the transmitter checker tool.