P392 4-Tjl 392 Wed 14 Jun C4 14:16:14
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Movies and certain other programmes are
often made in a widescreen format such
as "Cinemascope". Unfortunately, there
are many different widescreen formats,
all with slightly differing width and
height dimensions, and this creates a
problem for broadcasters and viewers.
Conventional TV sets have screens of an
almost square shape (4:3), which makes
it difficult to transmit a widescreen
movii without either losing some of the
action or by using the deep "letterbox"
technique that produces black bands at
at the top and bottom of the screen.
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