Haier P46C3A-A1 Owner's Manual page 19

Note:Press this key to activate OSD then you can select signal
source by
and when selected to enter the next menu.Press this key to exit
when searching program and previewing
SLEEP:
Select the TV sleep time.
SRS
WOW
MTS:
CH
. :
21 REVERSE Press this key to have the opposite color on the
image
22.(No available)
23.(No available)
Display the menu,back to the last menu and exit the menu
keys.
(You can switch among six screen sizes.)
.
continually to switch the aspect
When no option is selected
.