Samsung PN51E6500EFXZA - Manual (Page 216)

N You can connect a keyboard and
mouse at the same time.
●
Keyboard Settings
Lets you use a USB or Bluetooth
keyboard with your TV. If you want to
use a USB keyboard, connect it to the
USB port.
for LED 6500 Series and above, PDP TV
If
you want to use a Bluetooth keyboard,
connect it using the Bluetooth function.
N You can use the keyboard only