One of the most useful features of YouTube are the auto-generated subtitles. Say you're watching a video in Spanish and you can barely recognize your "como" from your "cama," the captions can help you put words in perspective and better understand what's being said. However, it's usually difficult to know which video has these subtitles before you start playing and try to turn them on. Today we learned of a neat trick that can help with that issue.

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