Quick check on a Panasonic P50S10Z TV:
1) Do these have discrete input commands?
-or is it one discrete for say PC input and then a series of next input commands etc?
2) Is there a command to mute the TV speakers without leaving a muted speaker icon permanently on the screen? I think the mute icon stays up, but maybe there is a setting in the menus to turn off permanent on screen displays/notifications perhaps?