Okay, I purchased a TCL L40FHDF11TA 40-Inch 1080p 60 Hz LCD HDTV 2 1/2 years ago (2 year warranty) and it worked fine until I cancelled my cable subscription and hooked my set up to a new Mohu Leaf HD antenna following the Mohu directions. After doing the initial channel setup/scan, I was happy to see I was picking up quite a number of HD channels off-air, all with a crisp, vibrant picture. But after 4 or five hours of viewing, the picture in all channels started flickering and became progressively darker--like it was dying a slow death. By the next day the screen is nearly constantly with the exceptions of brief flashes of partial images on the right side of the screen. The audio is still working flawlessly. ,,,,I have disconnected the antenna, disconnected the TV power source and held the power button down for a minute in an attempt to reboot the set--but the image remains the same. Even without the antenna attached the screen is black, not blue, so I can't access the menu, except by guessing with the remote--all the imput settings seem correct and when I hook up my DVD player I get the same result--dark screen, slight flashes of images, great audio. MY QUESTION: Did the antenna fry my TV's mother board...and can my set be repaired for less than the $360.00--$400.00 or so it would cost to replace it. Thanks for any assistance you can provide. ST