Vertical Lines all over then starts to move lines back and forth

sounds like it's toast http://community.sony.com/t5/Television-Picture-Sound/Vertical-Lines-of-death-KDL-52W4100/td-p/29582

Sound like your Y-Sustain board has one foot in the grave. The Y upper buffer and Y lower buffer boards go when the Y Sus Goes too...

You are about to buy a new TV soon.
Lines have nothing to do with whether you watch XBOX or TV.

The problem is the LCD panel went bad, it can't be repaired, you have to replace it.

Hey mate, very common in all makes of plasma TV's. See this how to video on to fix it, the video is for a hyundia but it is the same for your TV. http://www.youtube.com/watch?v=9NPobj0_GSo
It's pretty easy, just get a soldering iron and take your time, best of luck. Bro

HP-R4252 NOT LCD TV
IF LCD TV has vertical lines try cleaning T-con board to lcd panel cable or replaced t-con board

vertical ic fult or vertical section supplys missing

the vertical blue lines indicate some interference from other electronic gadgets near your tv. it started showing up on my sony grand wega when i installed my wireless modem. i almost ordered a new rear projection lamp costing over $100 but decided to experiment. i first moved my desk computer farther away from the tv then isolated the wireless modem router by placing it inside a small glass - the vertical blue lines became lighter in color so i dedided to find another small glass that fit inside the first glass container then put the router in the double glass - no more blue lines and my wireless modem router still works.
do some deductive thinking to figure out what's messing up your tv and isolate the interference.
good luck!

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

I have a samsung 42 in plasma television which is three years old, it has a blue flickering light to the right of the television, sometimes can see some at the top in the middle, hope you can help with this problem, is it repairable.