How long have you had the TV? This will eventually happen but not as fast as it did unless it is an older TV (Destiny only came out in Sept so that's way to fast). Normally you only see this on TV's stuck on MSNBC or a channel with a bottom slider, etc. Typically Plasma TV's heat up more than LED, so not having it well ventilated may have also contributed....also having the contrast and brightness fully maxed will also speed up burn in.