Steps

Press the HOME button, then select [Settings] → [Display] → [Screen] → [Screen Format]/[Wide Mode]* → the desired option.

* Option name differs depending on your region/country.

Available Options (4:3 Original Source)

[Wide Zoom]

Enlarges the picture to fill a 16:9 screen, preserving the original picture as much as possible.

[Normal]

Displays a 4:3 picture in its original size. Side bars are shown to fill the 16:9 screen.

[Full]

Stretches a 4:3 picture horizontally, to fill the 16:9 screen.

[Zoom]

Displays a 16:9 picture that has been converted into 4:3 letter box format, in the correct aspect ratio.

[14:9]

Displays a 14:9 picture in its original size. Side bars are shown to fill the 16:9 screen. (This option is available depending on your region/country.)

[Captions]

Stretches the picture horizontally to fill a 16:9 screen, while fitting captions in the screen.

If component input (480p) is selected and [Scene Select] is set to [Game] or [Graphics], the 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 a 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 (PC Timing)