I recently acquired a Sony FS76 Tv to replace my aging JVC set, i put my old Jamo Centre 100 centre speaker on top of the FS76 and noticed some staining in the top righth hand corner of the screen. When i took the jamo off the TV, the staining went. So, i checked on the Hardware reviews on here and it says that my centre IS magnetically shielded, so whats going on?? btw, i know i should reallu upgrade the centre speaker, but am i likely to experience the same probs with a better centre, i.e. i was thinking of a B&W one.