Solved! Bad LG TV Diagnosis Required

Oct 14, 2018
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So I have an LG tv that randomly goes all crazy red and green colours all over the screen then when I hit it in the top middle left on the back it goes back to normal, any ideas of what this is?
 
Solution
Most likely a failed solder joint. Physical motion (hitting it) moves the components just enough to make connection. Whether you could find that solder joint? Unknown.