When im watching standard def on my 50"panasonic plasma (full hd) i notice what i can only describe as a "sunburning look" on peoples faces, when its a close up shot of faces they seem to have like red patches that are moving & it can look awful, my daughter noticed this as she thought they had red lipstick on there faces, its mainly noticeable on progs like eastenders were the pictures are darker etc however with hd content it seems fine, is this interference due to the fact its standard def on a hd plasma? has anybody else experienced anything like this? for the record i watch standard def in 576p