I thought the same, and my Smart Sony TV claims very low standby consumption, but when it is on the Wifi and sat there ready to Airplay too it consumes something close to 27W all night long. I setup a smart plug to turn it off at night on a schedule.

Also seen that my Hifi Amp draws a good few watts on standby.

We have recurring argument in my house where my partner tells me I should have turned the LED lights off to save electricity and I tell them to close the curtains to keep the heat in. In truth I have no idea which wastes more energy/money