Hitachi UltraVision CineForm 55VG825 55" HDTV "dish tv change aspect ratio" Questions

...dish network with HD receiver. On regular channels the top of people's heads are cut off and if there are captions, can't read them. Tried changing and playing round with aspects. No help. Thanks! ...

...dish box. The only way i can get rid of it is to change the tv to a 4:3 aspect ratio (which sucks because it isn't a letterbox picture). I've just gotten use to it, however, i'll look in to the ...