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7
Aspect
Ratio
In
addition
to
resolution
a
nd
interlacing,
a
television
picture
is
also
defined
by
its
aspect
ratio
---referring
to
the
shape
of
the
screen
as
defined
by
the
ratio
of
the
screen s
width
to
its
height.
For
analog
TV,
the
aspect
ratio
is
4
units
wide
by
3
units
high
(4:3).
is
is
the
fa
milia
r
shape
of
conventional
TVs---slightly
wider
than
they
are
tall.
SDTV
and
EDTV
ca
n
be
either
4:3
or
16:9.
For
HDTV
broadcasts,
the
aspect
ratio
is
16:9---nearly
twice
as
wide
as
it
is
tall.
is
is,
not
coincidentally,
more
like
the
shape
of
movies
shown
in
theaters,
which
makes
HD
an
ideal
format
for
viewing
movies
on
TV.
You
will
be
able
to
see
much
of
what
is
captured
on
film,
but
lost
on
an
SDTV
display.
Screen
Formats
What
if
you re
watching
a
nearly
square-shaped
4:3
broadcast
on
a
16:9
TV,
or
vice
versa?
e
DIRECTV
HD
Receiver
lets
you
choose
from
a
variety
of
screen
formats
to
deal
with
those
scenarios.
You
can
set
up
your
preferences
for
format
during
Guided
Setup
a
nd
change
them
at
any
time.
See
the
next
page
for
your
options.
Honey,
does
this
receiver
make
my
screen
look
wide?
H20_UG-Chap
1
-
Getting
Started.7
7
8/1/05
2:44:30
PM
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