ive got a sony bravia tv which on dvd's the picture is mint but on sky its very very poor, i mean poor as in say your watching a dark film like saw the picture is good until theres lots of dark stuff and the dark stuff goes all pixely, as in the tv cant be ***** to make the detail in the darks so it just turns into big dark squares, but in that picture the faces etc are fine just dark bits are pants!! ive tried some settings on sky and tv and they seem to be ok (1080p) any ideas? we did have hd but not now but this shouldn't make this difference as my old toshiba picture frame2 tv was mint on everything!! could it be the sky dish is not 100% set up correctly?