Television and Home Theater

just got a sony wega sxrd 50....,

when i hook up the cable directly to the TV...i get very good picture quality except it don't get hdtv (supposedly) which i need either via a box (i have) or a cable card.

i hook up cable through the box to the tv..., and the hdtv stations are very crystal clear; UNFORTUNATELY, the remainder normal channels (including digital) are not as clear... (example: fox new channel...the filler screens at bottom are not as clear or one sees fuzziness at edges of bodies in contrast to backgrounds)..

My Hitachi lcd tv screen has turned green with picture quality poor

We have a Magnavox 21" TV it's aprox 3 yrs old.  Recently the volume wacked out.  It's almost like it half muted.  Even on the highest volume of 10 we can hear it but it's more like a volume of 4-5 level.  I've played with the remote buttons for hours trying different combo's trying to get the volume back to normal but nothing has worked.