A:AnswerThis tv has an internal shut down only if its not on a particular channel or if the channel has no reception to that channel. Otherwise it doesn't usually shut down.
A:AnswerThe tv is automatic set to 4k. You must have a strong WiFi or connected to Ethernet to allow 4k streaming as well as have a app subscriptions tier that allows 4k streaming. If you are referring to a gaming console when on the input of a device on press settings and go to picture then go to advance settings and scroll down to the hdmi input mode and change to 2.0 to allow 4k