Until one day, you turn it on, and without warning, you are presented with half a screen, or a single white line across the middle. Sound is optional.

I used to put all my change in a big jar, which was reserved for my next TV. When my current one crapped out, I'd listen to music while I rolled up my change, and go buy a new one somewhere. If I happened to be flush, maybe I'd add a bit more and get the next size up.