They analyzed the full text of words said in shows like CNN Headline News by using the closed-caption transcripts.

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In the comments below that post, Make Magazine readers chime in with all kinds of ways this sort of closed-caption-reading tech could be used.

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Current channel information plus date and time are also shown in the banner, along with quick access to the last four channels you've watched, your favorites channel lists, closed caption settings, audio and video details, parental controls and the ability to enable picture-in-picture.

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