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