I have a olevia LCD 32 inch multi media tv. Hooked up xbox and wii in the VCR/ DVD ports av1/av2. Xbox froze...after thirty minutes play... Turned it off, when I turned tv back on I had several vertical color lines on set... Did I fry the tv?
I don'tt know the answer here but it seems a good time to point out that it isn't wise to take the back off the TV to investigate. There are huge, life-threatening Voltages running round in there even when it's been switched off and disconnected for a long while.
The further I would suggest gong is to remove all the cables you put in and try the set again, on its own.