@Emanue1974
If the TV doesn’t seem to be responding to the remote, look and see if the light on the bottom of the TV flickers when you press buttons. If it does, then the remote is working, but the TV is not responding to it.
If the light doesn’t flicker, look at the business end of the remote through your smartphone camera; this will make the infra-red visible so you can see if the remote is actually working or not.
Next, if it is, point the remote at the TV and hold down the On/Standby button on the remote for 5-10 seconds, at which the TV should soft reboot, and perhaps work OK again.
If still no go, there is a little cluster of buttons on the corner, bottom back, of the TV, where you can power it off and on again. See the user guide.
All these are things you can try, prior to powering it on/off at the wall or factory resetting it.
If nothing works though, do make sure there is no-one standing underneath before you hurl it out of the window 😊
My favourite bedtime reading is a Sony product manual…
