I bought a Panasonic series 5 42" about 2 months ago, and my eyesight is ok but my hearing is excellent. I have never noticed any flickering picture with this set, but the electrical 'buzzing' is doing my head in!! I sent it back to Panasonic but they returned it 3 weeks later saying it was within 'acceptable levels.' I really can't be doing with this, as it's most off-putting when watching my films on DVD. Can I please have recommendations for a 42" (-ish) plasma that DOESN'T emit a distracting buzzing noise when it's on? Many thanks. Stacy.