View running hours on samsung d8000
I bought a TV and it seems it has been used so im trying to find out how many hours the panel has run. I looked around. searched google and found a combination to get into the service menu of the TV but im not able to find the running hours ??
Also read there was a second menu combination while tv is on: [mute] ,7,3,7,enter but that doesnt seem to work.
Where can I see the real running hours of the TV ?
Thanks in advance!!