I recently "upgraded" from a 19 years old tube TV to another, similar tube TV that is just 10 years old. Now the new... Err, less old TV is displaying a greenish shadow. I read online that this is a convergence issue and that it can be pretty easily fixed, even if your TV doesn't have a manual convergence setting, as mine doesn't. Anyone on Oppo familiar with tube TVs can confirm that? And no, I'm not buying a new TV because I have zero money and TVs cost more than that.
Have a Fiat 131 for your troubles