Samsung PN51F4500AFXZA E-Manual page 38

%
NOTE
® IDigita_ Caption Options are available only when you can select
IDefau_t and Semite1 ooService6 in Caption Mode,
® The availability of captions depends on the program being broadcast,
® The IDefau_t setting follows the standards set by the broadcaster,
® You cannot set the Foreground and Background to the same color.
® You cannot set both the IFont Opacity and the Background Opacity
to Transparent,
English