The function of the screen display is to press and display the current channel information. If your TV is now in AV state, it will display AV. Generally speaking, screen keys are written directly on the screen keys or on the TV keys.
Universal remote controller refers to a wireless transmitting and receiving device, which can decode the infrared signals of various remote controllers, store the received infrared signals and send infrared information again. 1898, it is impossible to verify who invented the first remote control. One of the earliest remote controllers that can be tested was developed by an inventor named nikola tesla (1856- 1943). 6 13809). It is called "method and device for controlling a moving vehicle or a mechanism of a vehicle".