Mine is:

FORMAT - used more and more unfortunatly as either the danish tv channels have started sending their signals differently or it is my co-operative union who is supplying my TV signal that has changed something. So the picture is small, and I have to press FORMAT 2 to zoom in, and then it get's a little grainy :o(
SPEAKER - for when I switch between 2 and 4 speaker mode
STAND - for turning the TV set so I can watch it from the dinner table :o)
CAMCORD - for my PS2
V.AUX - for my external 40£ region-free noname DVDplayer, so I can watch other regions
AV - used with the VTAPE input so only the speakers turn on, as my PC is connected here

SPEAKER
STAND
FORMAT
CLOCK
P.MUTE
SOUND
P-AND-P

Mine is as simple as it gets:

1) Clock
2) Format
3) Speaker
4) AV

The first is the most used - will the Beo5 have a clock on the display? and the Format is only used as most of the motorsport programmes on ITV4 insist on swapping format between the adverts - most annoying.