Hitachi 27AX4B - Manual (Page 22)

HOW TO USE THE REMOTE TO CONTROL YOUR T.V.
The word "MUTE" will not be displayed if the CLOSED CAPTION feature is on.
LAST CHANNEL (LST-CH) button
Use this button to select between the last two channels viewed. (Good for watching two
sporting events, etc.)
PICTURE-IN-PICTURE buttons (For Model 27AX4B only)
See separate section on pages 27, 28 for a description.
LIGHT button (For Model 27AX4B only)
When you are in a dark room, press this button to light up the volume and channel
buttons. The light will stay on for about 8 seconds if no button is pressed. The buttons
will not appear to light if the room is too bright.