Umm...
There is a wire crossing the front of the screen, that is causing RFI causing your player to output a tripple image that the TV cannot handle
J/K
What is your DVD Player set to upconvert to? 1080i or 1080p? I doubt that tv has the capability to display 1080p. But I'm sure you already checked that. Will the TV display the DVD signal at 720p? will the TV display your cable box at 1080i? Check that, and double check the settings on your DVD Player...
j