Samsung PN43D490A1D E-Manual page 123

Game Mode
N
Set Game Mode
N
Game Mode on before you have attached the game console, you may
notice reduced picture quality.
If Game Mode
N
– Picture Mode
▶
is not available when the input source is set to TV or PC.
to On only after connecting a game console. If you turn
is On:
is set to Standard
English
and Sound Mode is set to Movie.
▶