How To (Lock | Unlock) All The Hidden Channels

Click the setting button to open the setting screen, as seen in the below image (circled in red)

Click the parental lock button, as seen in the image below (marked in red)

Enter the Parental Password, as seen in the below image (circled in red)

Unlock all the locked channels, with a single click, as seen in the below image (circled in red)

You can lock all the previous locked channels with one click, as seen in the above image (marked in red)