To switch from streaming content to live broadcast TV press the TV button on the remote control (back lit)l.
You can also switch inputs via the input button on the remote control, this button is underneath the TV button and looks like a square with an arrow pointing to the right through it. When you press this button you will see a strip at the bottom of the screen, scroll right or left to select between HDMI inputs, USB inputs and installed apps.
You can also use the Google Assist button to speak commands to the TV to switch between outputs/ apps/ volume control etc etc etc. Practice makes perfect.
