My Hitachi 50v500 rear PROJECTION tv is all pink and fuzzy.
I would be happy to answer your question today. The model Tv you have has a common problem that can make the picture fuzzy and over-saturate a color. If you are having the problem on all inputs and have made certain all your connections are good, then you probably have a defective Optical Engine. This is a very detailed repair and the part is about $500. Labor to install the Optical Engine runs about $300 or you can try it yourself, but I do not recommend this because of how difficult the repair is. The part can be found here - http://www.encompassparts.com/products/?UX22201R
If you have any further questions please ask!
10 Years Audio Video Repair & Setup