It doesn't have to be. If your devices support HDMI-CEC[0], then you can turn on 1 device and everything sets itself up. For example, I can turn on my PS4 and

It doesn't have to be. If your devices support HDMI-CEC[0], then you can turn on 1 device and everything sets itself up. For example, I can turn on my PS4 and it automatically turns on the TV and sets the correct input. [0] https://en.wikipedia.org/wiki/Consumer_Electronics_Control https://en.wikipedia.org/wiki/Consumer_Electronics_Control