A lot of them have that. Problem is, it also causes problems with certain equipment connected via HDMI cables. Both our Panny plasma & Sony LCD have Auto On/Off, and I turned them off, because it does not play nicely with the Uverse boxes. Just putting it out there so that you are aware there are issues with this particular feature.
Thanks. I am actually looking to connect it to a Cisco C20 video conferencing codec. That way when someone picks up the remote, everything comes on, and when the system goes to sleep, the monitor goes off.
The Cisco C series support CEC on the hdmi outputs and I have tested this with Samsung, Sony and Sharp.
Just ensure you enable CEC under video outputs and it will automatically power on and off the TV. Also if you are using the Cisco touchscreen as well ensure you hard set the resolution on the codec to 1920 x 1080 at 60. Otherwise you get some minor issues with the menu changing from white to black modes.
I've had great results with Sansung and Sony.
Only annoying this is that C40, C60 don't have two HDMI outs but the SX20 and C20 does so you can do dual screen and it will turn on and off automatically. It's really a great option without delving into commercial screen models.