Ikke så nemt som foregående modeller (fx PX80), og selvom jeg har postet det tidligere i en anden tråd, får det nu lige sin egen tråd, så det også er til at finde ved en søgning.

Her er fremgangsmåden, fundet i et andet forum:
this is how you do it on all the panasonic's from the last few year.. or more
Press V- on the tv and zero on the remote 3 times and when your in the service menu
Press the red fast text key
press ok
arrow down to PTCT then arrow across to the empty space next to it
press and hold the mute key until it shows you hours and on/off
when done press and hold the back/return key till set powers off then it will come back on in a normal mode.
that should give how many hours you have used.
at your own risk mate
Mvh Michael