how do I fix lines going across my hatachi big screen?

There are lines going across the screen and a yellow and blue spot near the center of the screen. It also has white haze and turns off by itself sometimes. Sometimes we turn it on and it works fine except the two spots. 1996 Hatachi.
Dona, December 2004


done
My Hitachi had the same problem but now its gone completely , all that comes on is a dark blue screen

slick, December 2004