Using The Arc Function - Samsung UE50ES6300U E-Manual

Using the ARC function

for LED 6500 Series and above, for PDP TV
You can listen to sound from the TV
through a receiver connected using
an HDMI cable without connecting
a separate optical cable. To listen to
DVD player and it is connected
to the TV via HDMI, you will hear
only 2 channel sounds from the
receiver.