Samsung UN46ES7500F E-Manual page 170

you block programs you've determined
are inappropriate for your children
based on their ratings. To access the
Program Rating Lock feature and make
any changes, you must enter a PIN
(personal identification number). To
watch a blocked program, you must
also enter the same PIN.
N
The Program Rating Lock
available in HDMI, Component mode.
N
The default PIN number for a new TV
is not