Subtitle show -????

Aug 28, 2018
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My TCL Tv Model-LED28D2710
when i play any movie with subtitle in bengali language it shows- ??????
language not support. Have any solution ?
 
Solution
When you watch a movie on the TV, is it connected to a cable box or other device? I think this is not in the settings of the TV, but the settings on where you are watching the movie.