You can tune televisions two ways, auto tune and manual tune. Both are done using the remote control. The difference is an auto tune will pick up and tune into any transmitter and a manual re-tune allow you to tune specifically to the the transmitter your aerial is pointed towards. It is better to perform a manual retune because if you are in an area with multiple transmitters, it is important to tune into the strongest signal to get the best reception. For more information can be found on our Manual Retuning help guide.