Available Options (16:9 Original Source) - Sony KD-65X9005A I-Manual

available options change to [Fine-Normal]/[Fine-Full]/[Portable Game 1]/[Portable Game 2].
[Fine-Normal]
Displays a 4:3 picture in its original size. Side bars are shown to fill the 16:9 screen.
[Fine-Full]
Stretches the 4:3 picture horizontally, to fill the 16:9 screen.
[Portable Game 1]
Stretches a black-framed game picture from PlayStation®Portable.
[Portable Game 2]
Stretches a black-framed picture (e.g. browser) from PlayStation®Portable.

Available Options (16:9 Original Source)

[Wide Zoom]
Enlarges the picture, preserving the original picture as much as possible.
[Normal]
Displays a 4:3 picture that has been horizontally stretched to 16:9, in 4:3 format.
[Full]
Displays a 16:9 picture in its original size.
[Zoom]
Displays a 16:9 picture that has been converted into 4:3 letter box format, in the correct aspect
ratio.
[Captions]
Stretches the picture horizontally, while fitting captions in the screen.
Available Options (4K (4096×2160) Original Source)