What to do on used sets?

[radiotvnut]

One common problem I've seen on many later CRT TV's is lines and foldover at the top of the screen. This problem is almost always caused by a faulty cap in the vertical circuit. However, people will often run the set until the cap blows the vertical output IC. If they'd bring the set to me when it first started acting up, their bill would be cheaper and my job would be easier.