Samsung UN46ES7500F E-Manual page 168

operates in either analog TV channel
mode or when a signal is supplied from an
external device to the TV. (Depending on
the broadcasting signal, the analog caption
function may or may not work with digital
channels.)
Default /
/ Text1 – Text4: (Digital channels only) The
digital caption function works with digital
channels.
Service1
N
in digital caption mode depending on the
broadcast.
Service1 –
– Service6
Service6 /
may not be available
CC1 – CC4