JVC LT-37DV1BJ Instructions Manual page 22

View subtitles (Digital channel only)
By default, the language set in "System Language" (P. 34) is automatically
selected.
When not broadcast in that language, another broadcast language is
automatically selected.
Subtitle Selection Off
Switch to another language

Subtitle Selection
Subtitle Selection English
: Special subtitles for the hearing impaired
Undefined : When the subtitle's language cannot be identified
The language that can be selected depends on the broadcast.

When no subtitles are broadcasted, "No Subtitles" is displayed.

Subtitle Selection English
select
English
Select audio language (Digital channel only)
By default, the language set in "System Language" (P. 34) is automatically
selected.
When not broadcast in that language, another broadcast language is
automatically selected.
Switch to another language

Audio Selection
English
Audio Selection
English
: Special audio track for the visually impaired
: Special audio track for the hearing impaired
Undefined: When the audio's language cannot be identified
Dolby: Dolby Digital
The language that can be selected depends on the broadcast.

Please read ""Dolby Digital" output from the DIGITAL AUDIO OUT

terminal" (P. 46) before selecting "Dolby".

Watching TV
1 select
2 set