Sony KP53XBR300

I have a Sony KP53XBR 53" projection tv.  Its about 8 years old now..  It worked great till about 2 months ago when it started ghosting and white lines scroll horizontally..  Its not an all the time problem but it is a most of the time problem.  It goes away for minutes at a time..  I was wondering what might cause this/how I can fix it..  I've flash whatevered it but that doesn't help..  It works alright in HD but for some reason the blue doesn't show up so it makes game play hard..  Any help is much appreciated..