Hey, I have a Sony. it supports being turned on and to the correct input by a Chromecast using HDMI-CEC. I think, like the other guy said, there may be a setting to enable it on your Samsung. I know someone with a Samsung that it works for (the turning on works for sure, not sure about the changing input and turning off). It may be called something different in your tv settings though... I'm sure you can google it. Good luck!