Use of Stretching For Standard Definition Networks
Some select networks, such as MavTV, World Fishing Network, and many of the all-music video networks in the MTV Networks Digital Suite such as MTV Hits, MTV Jams and mtvU only are carried in 480i standard definition or have low opportunities for high definition simulcasts of their networks to be carried by cable or satellite providers due to a lack of compelling content or demand for their network's content in high definition by providers or viewers. These channels have begun to offer their 480i channels with a 16:9 image compressed horizontally to fit a 4:3 screen. This allows display of the content in its native format if a viewer uses the "stretch" or "fill" mode on a 16:9 display, though the image is not as high quality as that of high definition, or even an equivalent native 480p image in 16:9. In the mtvU example, the move is purposeful as the network is transmitted mainly to university and college campus closed circuit television systems which transmit no high definition content due to cost concerns, but have installed lighter and less bulky LCD/LED televisions in common areas of their campuses.
Read more about this topic: Stretch-o-Vision
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