Samsung pn43d450a2d E-Manual page 24

Wide Fit: Enlarges the aspect ratio of the picture to fit the entire screen.
4:3: Sets the picture to basic (4:3) mode.
N
Do not watch in 4:3 format for a long time. Traces of borders displayed on
the left, right and center of the screen may cause image retention (screen
burn) which are not covered by the warranty.
Screen
1080i / 1080p) or Component (1080i / 1080p) signals are inputted.
●
Position: Adjust the picture position. It is only available in Zoom1,
◀
Wide Fit.
Fit: Displays the full image without any cut-off when HDMI (720p /
English
Zoom2 or
▶