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What is the difference between EIA-608 and EIA-708 captions?

April 26, 2017captions difference

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What is the difference between EIA-608 and EIA-708 captions?

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In simple terms, EIA-608 is the captioning standard for analog television. The look is white letters with a black box background and captions are embedded in Line 21 of the VBI (vertical blanking interval) of analog video. EIA-708 captions are the new standard for digital television. They are sometimes called DTV captions. The end-user is able to adjust the look of the captions that are placed into MPEG-2 video streams in the picture user data. For more information, read: The Basics of 608 vs. 708 Captions.