Samsung LS24HUCEFV-XAA - Manual (Page 42)

PIP ( Available in PC/DVI(PC) Mode Only )
Menu Description
PIP
Push the PIP button to turn PIP screen On/Off.
You can view a picture from AV, S-Video, or Component through the PIP
screen in PC and DVI (PC) mode.
MPA
Menu Description
MPA
Push the MPA button to turn MPA On/Off.
This function is used to play movies. You can enjoy better screen quality.