This may be the duh of all time

My brother recently had his rear projector worked on and while into the unit the tech told him to clean the CRT's about every 6 to 8 months. His was so dirty he said the wow factor was amazing after cleaning. Sooo I pulled my 4 year old Pioneer Elite out and cleaned the CRT's and yes the beautiful detailed picture I remembered when I bought the unit returned. It just never crossed my mind. Try it!!

jr96