- Open captioning, or subtitling, usually presents the dialog being spoken by the characters in written format at the bottom of the screen. After the silent film era, the only movies shown with subtitles were foreign language, and even those were increasingly dubbed into an English-spoken soundtrack.
- Closed captioning cannot be seen unless activated by a remote control menu button. Designed for the deaf and hearing impaired, closed captioning shows more than just static dialog. The dialog will move to denote who is speaking. Other sounds may also be indicated, for instance, musical notes for singing.
- Real-time captioning is used for live events such as news, sports, live music or telethons. Using computer-aided translation, real-time captioning converts the spoken word into printed format, usually white lettering on a black background. Real-time captioning might include dialogue and a factual reporting of events.
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