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Captions & subtitles
CEA-708 captions
CEA-708 is the digital-television caption standard in North America, supporting multiple windows, fonts, colors and more languages than the analog CEA-608 it superseded.
708 is what modern broadcast and cable delivery actually uses, usually with 608 data embedded for backward compatibility. Streaming platforms mostly use their own formats (VTT variants), so 708 matters mainly at the broadcast hand-off.
Related terms
CEA-608 captionsCEA-608 is the legacy North American broadcast standard for closed captions — the 'line 21' captions of analog…
Closed captionsClosed captions are timed text that can be turned on or off by the viewer, written for deaf and hard-of-hearin…
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