Samsung UN46ES7500F E-Manual page 477

Caption on TV menu is grayed out.
You cannot select the
have selected a source connected to the TV
via HDMI or Component.
The external device's
also be activated.
There is a plastic smell from the TV.
This smell is normal and will dissipate over
time.
The TV Signal Information is unavailable in the
Self Diagnosis menu.
Caption menu if you
Caption function must