Choose the intended screen and wake behaviour
LG documents an option to use Always Ready without wallpaper. A black screen in that state is not proof that all network or audio functions are inactive. Its guide describes returning from screen-on Always Ready with Home or Previous, and using power when the Always Ready screen is off.
Inspect General, Always Ready in the supported television’s settings if you want to enable or disable the function. Record the previous choice before changing it, so another household member’s expected artwork or audio behaviour can be understood rather than mistaken for a new fault.
Keep power expectations explicit
LG notes that energy consumption may increase in Always Ready and that the mode cannot operate with the power cord removed. Those are boundaries of the documented feature, not a measurement of the consumption of your particular television.
If the TV wakes unexpectedly, distinguish a configured Always Ready function or external speaker command from an application starting by itself. Record the screen state, connected audio source and enabled wake-related features when asking LG for help. A clear account of what power-off meant on this model is more useful than a factory reset made before identifying the active mode.