The ability to display subtitles during a film or TV show is a useful tool that helps those with disabilities as well as those watching a program in a language other than their own. It is built into most devices and is very easy to activate.
This walkthrough will help you enable the automatic display of subtitles on your LG Smart TV.
Enable Subtitles in LG Smart TV Settings
Press the Home button on your remote. Select the cog icon (top-right corner) to access Settings > Accessibility > Subtitle.
Toggle the Subtitle switch ON, and apply your changes.