Flickerin Screen. I have had the for 18 months. Yesterday, I turned on my tv and found that it is

Question

I have had the for 18 months. Yesterday, I turned on my tv and found that it is flickering like a strobe light and wont stop. I called Olevia and there werre about as helpful as a bag of S#@T. $200 to send and return the TV and $100 per hour to look at it.
Any Ideas of the problem or a tech in the Fort Lauderdale area???