In the Home Screen select WeTV
While in WeTV press to the right on the DPAD of your remote to open the lateral menu and select "Channel sources"
Now select LiveTV
Select your service (Terrestrial or cable (in this example we will use terrestrial))
Select your country (If you country is not listed, select World)
Select Transponders (Automatic)
Choose your desired Frequency (in this example we're using 642 MHZ) and select Add. You can add multiple Frequencies.
After adding the frequencies, on your Remote Control, click on the Back key two times
Select scan to initialize the scan
Channel scan should start
Once the scan finishes just press continue.