lighting hit really close to the house today while i was watching tv.i never lost power in the house but picture and sound went off.the blue bower light in the front of the tv stayed on.i shut the tv off for like 2hrs turned it back on by plugging it back in i can hear what sounds like the tv powering on and the blue power light comes on,but that's it know sound or picture cant change channels or volume. need help i have know idea what this could be thanks andy