I have a 42" LG Plasma that is about 3.5-4 years old that has been acting up lately. It started out by turning itself off for a couple minutes then turn back on. Then it would turn off for a hr or so then turn back on. Then 3 days ago it turned off and didn't turn back on at all until a few minutes ago when my cat bumped the lower left hand corner of the TV. I heard it click like it was turning on but it quickly turned off. So I started tapping on the lower left hand side and it started clicking again and it came back on. Anyone know what might be going on with the TV? Thanks