+2 for capacitor check. Nearly everything that breaks around here, except for the empegs, is due to bad/expired caps.

As for TVs.. our Viewsonic 37" LCD has one (of 12) backlights not lit. I disassembled as much of the set as I could to try and access it, but hit the point of too many pieces and gave up -- reassembling it while it was still possible.

None of my voltmeters go high enough to verify the 1300V supply lines to the tubes, though all of them appeared to have more than 700V live.

Cheers