To solve the problem with the TV channels, you need to do an automatic searching for the channels in your television.
*Remember that you do NOT need to do it immediately, you can re-tune your TV whenever you come back home.
In order to do this, you can follow these steps:
1.- Press the "Menu" button of the remote controller of your TV. Once there you will see that several options comes up.
2.- Use the arrows of your remote controller to move through the list of options to select the option called "Set up / Installation / Configuration / Update" or similar.
3.- Select first-time installation (sometimes called factory reset, full retune or default settings).
4.- Press OK if your equipment asks if it's OK to delete existing channels.
5.- Select Antenna /Aerial /Digital Aerial mode and then retune should start automatically.