Samsung DIRECTV SIR-TS160 Owner's Manual page 17

Chapter 1: Technical overview
These 2 tables summarize your screen format options:
If your display is a 4:3 format TV or monitor, your format options include these:
For 4:3 program signals:
For 16:9 program signals:
* Note: Letter box is not available through the composite output jacks (Video
Out, S-Video Out, and TV Out jacks) when the RESOLUTION SELECT
switch is set to 1080i and the source signal is 1080i.
If your display is a 16:9 format TV or monitor, your format options include these:
For 4:3 program signals:
For 16:9 program signals:
For either of these scenarios, the option you choose is a matter of preference.
The FORMAT button on your remote control allows you to cycle through the
formats available for your display type.
Note: You can set the color of the horizontal or vertical bars displayed for Letter
box and Pillar box screen formats to either black or gray. See Chapter 7 for
details.
Full
*Letter box Full
Pillar box Full
Full
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