When you get a new tv LCD or plasma, do they have a 'running in' time. What i mean is does the picture get better after a certain amount of hours being on. I ask this because i got a new tv and the 1st 2 days i thought the SD picture was rubbish. Then after a while i was just sitting and watching and suddenly thought...wow this picture is really good. I now think my SD picture is good quality. I know someone might say its just because i got used to it....but its not that. I bought a new mains cable andd with it they stated the cable took around 100 hours to run in. So just wandered if tvs do the same. And if this is the case.....do WhatHIFI leave the tvs on for 48hrs before doing a review?