How do you know when to change the light bulb of a plasma or LCD TV?

My TV is not working the picture appears then disappears does it have something to do with the light bulb?How do you know when to change the light bulb of a plasma or LCD TV?You can't change bulbs in plasma or lcd tvs. Only whole panels and they cost more than a new tv. Your problem could be many things. Put your make and model + problems into google and see what your fellow owner's have to say.How do you know when to change the light bulb of a plasma or LCD TV?Neither plasma or LCD TVs have a light bulb. The LCD sets have fluorescent or LED backlighting. (not a single %26quot;bulb%26quot;) The only TVs with a type of so called %26quot;light bulb%26quot; are the DLP (digital light projection) sets. You have a circuit problem that needs repair.

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