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Operating Instructions
Learning About Screen Modes
TV programs can be created in a variety of aspect ratios or Screen Modes. The most common
are 4:3 and 16:9. TVs or monitors most often have an aspect ratio of 4:3 or 16:9.
To allow a wide variety of programs to be best displayed on the various TV and monitor
shapes, your HD DVR features several Screen Mode settings. There are three categories of
Screen Mode settings: HD to SD, SD to HD and HD to HD. In the case of HD to SD, when a
high-definition broadcast is received and is then output by your HD DVR in standard-
definition format, the Screen Mode settings of Letterbox, Side Crop and Squeezed are
available.
HD Content to SD Output
When high-definition content is received and output in standard-definition, the following
Screen Mode settings are available:
Table 4: HD Content/SD Output
Letterbox
Select Letterbox to view full 16:9 image within the 4:3
output.
Side Crop
Select Side Crop to fill the 4:3 output. No black bars on
the top and bottom are visible, but some of the video
image is lost on each side.
Squeezed
Select Squeezed to fill the 4:3 output. No black bars on the
top and bottom are visible, but the video image is adjusted
so that objects may appear taller or thinner than normal.