There is some models that were hit with the BAD CAPS PLAGUE that is well discussed. If the TV works stand alone then I'd worry it's some electrical wiring issue (wall plug?)
I have a Sony STR-dn1030 receiver. I have 1 definitive technology speaker with a built-in sub connected. Components connected are Samsung 55" series 9 slim TV, 3D Blu-Ray player PS4, and Fios Cable Box. The problem I am having is the TV will automatically turn off and back on repeatedly sometimes changing the picture screen to distorted colors and lines. The problem comes and goes. When the tv restarts, the receiver makes a clicking noise and displays LPCM . I do not know if it's the TV that's the issue or the receiver.I have tried many different things from updating firm ware and also checking all connections. Can anyone PLEASE HELP ???