Hi rsthut1,
I'm very sorry for any inconvenience this may have caused you. Unfortunately, this sounds like it may need servicing. Here's the thread where you can get details on setting that up: http://forums.cnet.com/7723-13973_102-542437/service-issues-click-here-for-help/
Regards,
HD Tech
I just bought a used Samsung (model shown in title.) When I hook it up to cable, I get green and purple wide vertical lines. Any idea what may be causing this? If I use the TV to view DVDs it works fine.
Thanks

Chowhound
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