subtitles

I uploaded a Video TS file on appletv but it does not show the subtitles while playing . If I play the movie in the computer the subtitles are there.
Can anyone help me with this?

You can toggle the subtitles through the DVD’s menu, or by pressing the up arrow during playback to access the subtitles option. Once the subtitles option appears onscreen press the left arrow to go switch through the available subtitles.