TV shot off by itself. Will not turn back on.

Could be a fuse, could be anything really. Without seeing the TV and perform diagnostics, I cannot say for sure. You will need to take it in somewhere to be repaired or have someone come out to your home to diagnose what's wrong with it. However, it could cost at least $150-200 USD to fix it. So combine that with the fact that it is a CRT (tube) TV, and you might want to consider purchasing a new TV instead.