Our Mitsubishi TV is 14 years old! The picture rolls but not all the time. Rolls for a minute or so when first turned on. Then only sometimes when seen changes. Some stations more then other. It was born in 1992 is it worth fixing? Repair history .... new caps in 03, Fixed for "squinting problem 5 months ago. Spent $300 so far. Time to call it quits? Thanks for your help! TJ