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Do you know HDTV ?
High-definition television (HDTV) is a digital television broadcasting system with higher resolution than traditional television systems (standard-definition TV, or SDTV). HDTV is digitally broadcast; the earliest implementations used analog broadcasting, but today digital television (DTV) signals are used, requiring less bandwidth due to digital video compression. (wikipedia)
This is an example:
Boarding Gate MovieYou can download here: Movie HDTV