Operation Manual
16  1. Basic Setup and Operation
For assistance call 1(800) 332-2119
Feature
Page
Parental controls (Lock menu) 61
Audio Lock (controls your sound system with 
the TV’s remote control left in 
TV
 mode.)
78
TV Clock. Set the TV Clock if you plan to use the 
TV Timer (page 56) or ChannelView (page 29).
56
Favorite channels or sources 28
ChannelView and custom channel collections 29
Changing the input names that appear in the 
Input Selection menu (Inputs > Name menu)
59
3D Video 33
StreamTV™ internet access 45
Programming the remote control to operate 
other A/V devices
77
Basic TV Operation, continued
The FORMAT Key and Picture Shape
Important
Black bars at the edges of 
the screen are common in HD 
pictures. Black bars are not a 
defect of the TV.
• Black bars are added by broad-
casters to fill the 16:9 screen 
area while preserving the original 
aspect ratio of the picture.
• Your cable box, satellite receiver, 
or other device may also be 
altering the broadcast picture. 
If your device offers output in 
native format, try using it with 
Mitsubishi picture formats.
Sample Uses of the 
FORMAT
 Key
If you prefer to reduce of eliminate black areas at the edges of the picture, 
use the 
FORMAT
 key.
Press
Squarish 4:3 image is 
narrower than the 16:9 
screen; unused areas at the 
sides are filled with black.
Wide Expand mode stretches 
the picture sideways to fill the 
screen.
Press
Wide 2.35:1 anamorphic DVD 
image; unused areas at the 
top and bottom are filled with 
black (letterbox effect).
Zoom mode. The picture fills 
the screen. All four edges are 
cropped in this mode.
Repeatedly press the 
FORMAT
 key to cycle 
through displays for the 
current program. The 
TV will remember the 
format you last used on 
each input.
For details, see page 32
More TV Features
Feature
Page
Digital camera images as composite video 39
Controlling compatible devices using HDMI 
CEC control
85
838 Series. Controlling A/V devices with Net-
Command
64
838 Series. Listening to a wireless audio 
device with the TV speakers
40
838 Series. Using an external subwoofer. 26
838 Series. Center and rear channel audio 
output
27










