Samsung PN51E6500EFXZA - Manual (Page 595)

(HDMI-CEC) to On in the System
menu.
N Switching to the selected device
may take up to 2 minutes. You
cannot cancel the switching
operation while switching is in
progress.
N If you have selected an Anynet+
device using the Source function,
you cannot use the Anynet+
function. Make sure to switch