While watching went to green horizontal green squiggles lines. cut off let cool down. cut on worked 6 wks. cut off cool down worked 2 days. cut off cool down worked 1 hour.

What about it?!

Samsung LN46B650 Thin Black Horizontal Lines - Forums - CNET

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CNETJun 11, 2015 - I'm experiencing thin black lines from the top of the screen to the bottom. ... my lcd tv has multiple lines are horizontal it starts from the right and fades too the left, ... Samsung LN55a950 - Horizontal lines on right side - Forums - CNET
Jun 11, 2015
Samsung 52" LCD TV black lines - Forums - CNET - CNET.com
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Plasma TV Repair Horizontal Lines - How to Diagnose ...

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I have thin horizontal black lines on the top and bottom areas of my TV. .... Hi, I have a 2011 64-inch 3D Samsung PN64D8000 Plasma TV.

how to fix horizontal or vertical lines on lcd tv - YouTube

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https://www.youtube.com/watch?v=k2QpYJp6MU8
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Hi my LG 47ln5700 tv set has thin greyish black horizontal lineson one side of the .... I hope this works good with Samsung LCD as well....

Assuming the "squiggle line" is the Utility LED the unit has proper power. The light is steady green and not flashing, correct?

Have you reset the unit?

Try removing all but one attached device to verify it's not an overload condition.

A photo of the control panel would help.

LCD panel board problem, change panel

2 things that will cause that vertical IC or Yoke! Listen to this one went on service call 2wks ago Customer had a 50 INCH1988 pioneer big screen replaced 3 capacitors resolder poor connections TV is now working like New ?

If the screen works for a short while and then completely fails once the TV warms up you have a problem with the main unit video board or the LCD control logic board. Most often if the picture cuts out but audio continues to work the logic board is over heating and should be replaced. However if the picture cuts out and audio shuts off as well then its your video input board.

I was just watching TV and all of a sudden the screen minimized down to a single green line spanning across the screen horizontally. The label in the back says it was made in 1996 so it is an old tv. Can anyone help?

You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance:
1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours
2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris.
3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle

Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!

A set that has only a 1/2 inch bright line through the middle of the picture, from left to right, has a vertical output IC that is not working correctly. If the 1/2 inch line is in the middle but going up and down, then the horizontal yoke circuit has stopped working. These are problems which should be looked at by a qualified tech, but if the set was purchased 6 months ago then it should still be under the manufacturer's warranty.

Usually there is a capacitor in the pump up circuit and/or an IC in the vertical circuit that causes this problem. Contact Panasonic at: http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001 To find a servicer in your area. This will give you an idea of the cost of repair. Hope this helps.