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Below diagram shows how to combine application with broadcast stream together that is already implemented in common Smart TV on the market that means the partners can implement all the necessary things easily in HTML5.
Source: https://www.atsc.org/wp-content/uploads/2017/12/A344-2017-Interactive-Content.pdf
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Following diagram shows how ATSC 3.0 AEA(Advanced Emergency informAtion) system enables broadcasters to deliver timely, in-depth emergency related information to their viewers, which can strengthen the connection between the audience and the station and provide critical information in times of need.
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