After about 2 hours of being on, my tv pic looks like fireworks being displayed on the screen

The panel or the mainboard is bad and is broken for your TV. Or it could be caused by electromagnetic siginal interference from appliances in your house.

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Nothing wrong with motherboard engine it seems looking like issue with plasma display connector top left and right side , if you good on that to do it yourself then have look pic or send me pics inside http://electronicdoctor.weebly.com Connection may be different on your TV set

sounds like a damaged screen on a LCD or a Plasma TV---if so it is fatal.

It is in fact a tiny firework. You have the camera set for "fireworks" mode.. There should be a setting in the menu where you find different "scenes" where you can change it back to Daytime or some other standard setting .

hello try changing the picture ratio...what i mean is try 16.9 widescreen or 4.3 ledder box the tv is tryn to produce a pic bigger or smaller than what you have keep tryn different picture ratio's

do you think you can take a picture and send it to this website

Bad Hyper module = No longer available = rebuild only by qualified tech or send PTS Corp.....Toshiba part # 23786198
..............T.

What is the model/make of this heavy Tv? I power light indicating any error codes?