Panasonic Viera TC-50PU54 Owner's Manual page 24

To use all VIERA Link functions: After everything is connected, in VIERA Link settings menu, set "VIERA Link" to "On".
Some features are disabled depending on the "HDAVI Control" version of the equipment.
Please check the list (p. 22)
Select "VIERA Link settings"
Set "VIERA Link" to "On"
Menu
Picture
Audio
Timer
Lock
Closed
Caption
Setup
Select and make other settings
Menu
Picture
Audio
Timer
Lock
Closed
Caption
Setup
24
VIERA Link settings and Available features
VIERA Link settings
On
VIERA Link
Power on link No
Yes
Power off link
Energy saving mode
Quick start
Unselected device energy save
No (stay on)
Default speakers TV
VIERA Link settings
On
VIERA Link
Power on link No
Power off link Yes
Energy saving mode
Quick start
Unselected device energy save
No (stay on)
TV
Default speakers
Menu Setup
Channel surf mode
Picture
All
Language
Audio
Clock
Timer
ANT/Cable setup
Input labels
Lock
Anti image retention
VIERA Link menu
Closed
Caption
VIERA Link settings
Setup
select
select
1/2
select
next