LG 55LN575V User Manual page 35

When TV receives the wide screen signal, it will let you adjust
the picture horizontally or vertically, in a linear proportion,to fill
the entire screen fully.
Full Wide
4:3 and 14:9 video is supported in full screen without any video
distortion through DTV input.
✎ In Analog/DTV/AV/Scart mode,
4:3 Resizes images to the previous standard 4:3.
You can view a picture format of 14:9 or a general TV
14:9 programme in the 14:9 mode. The 14:9 screen is viewed in the
same way as in 4:3, but is moved up or down.
Resizes the image to fit the screen width. The top and bottom
Zoom
parts of the image may be cut off.
Cinema Choose Cinema Zoom when you want to enlarge the picture in
Zoom correct proportion.
Full Wide is available.