Green screen following power outage - Repair Steps?

I have scoured the internet and cannot find a solution for this:

We were run over by a severe series of thunderstorms 2 days ago and we turned off our 50" Zenith(made by LG) HDTV, and watched the display natures power. 2 different bolts hit within a few feet of our condo and had our Adrenalin pumping.

Our TV system has a large surge protector on it for such occasions.

When we turned our TV back on, there was a heavy green screen with a heavily blurred "no signal" message moving around the screen..... no sound.

I unplugged everything and reset it all.....no difference.

I changed HDMI outlets.....no change.

Our Wii would play music but offered a blank dark gray picture with no details.

Brought the bedroom TV in and it worked fine........so the feed and the box are OK.

Left the TV on for a while to see if anything changed and after about 5 minutes, it magically turned itself off....?

Our big surge suppressor does not have hookups for the cable which goes through a Comcast box first before going to the TV.

There are a few light red lines which run vertically through the green screen as well......

Any ideas for repair?

Thanks in advance,

Dean in IL