My 3 year old Samsung txt2793hx/xaa Slimfit started acting up last week. While watching the TV lines suddenly appeared across the top of screen and then it shut off. I unplugged the TV and DVR and the picture returned, but no sound. The next morning I unplugged again, turned on the TV and sound and picture worked fine.
Happened again about a week later, unplugged and got both sound and picture right back.
Last night, no sound or picture. Now I hear the annoying noise that accompaines turning the TV on, but no picture or sound. Any ideas?