The blackness is to dark night sceens so black you cant see nothing all other colors fine

Along with the above advice, which I concur with, your optics need professional grade cleaning, due to the high voltage turning your set into a giant ionizer. If you've ever taken the back off a CRT set and seen all the dust congregated around your HV components, you know what I mean.

See my website for details -


Mr Bob
www.imageperfection.com
[email protected]

I would turn up the contrast and brightness if you have not already done so. If that does not help, Call a good TV Tech and have hime turn up the TV's internal screen adjustments located on the focus block in the front of the TV just behind the speaker cover.