Yes, I use my AppleTV remote to out the LG TV to sleep. I am using HDMI1, but I don't believe that it matters. There is a setting on the TV under General ---> Simplink. Be sure that it is on.Can you turn your LG tv off with the aTV remote? Mine doesn't work. If, on the aTV remote, i press and hold the square TV box (top right), it will put my aTV to sleep. The LG tv goes dark for about 5 seconds and then goes into screen saver mode and says "no inputs". I have CEC enabled with the aTV hooked up to HDMI input #4, so shouldn't sleeping the aTV also turn off the tv?
Trying so hard to get down to one dang remote...