Toshiba 24V4210U User Manual page 49

MenuLayoutandNavigation /1Q
Navigating the menu s_stem
4 All menus close automatically if you do not make a selection
within a few seconds, except the signal meter menu, which
closes automatically after a few minutes.
5 To close a menu instantly, press the EXIT button.
NOTE Themenubackground maysometimes appear b lack,depending on
thesignaltheTVis receiving, T his is nota signof malfunction,