Problems with my TV

I have a 42 inch RCA LCD HDTV and just recently the TV does not turn on anymore. What happens is when i plug the TV in to the wall jack the green button turns on and tries to start. During the time when the green light is on, there is a clicking sound that comes from the TV and its not very loud at all. After about 10-15 seconds the green light turns red and keeps blinking. I cannot use any of the controls on the TV, for example i cannot turn it on or off anymore. I have to resort to unplugging the tv and plugging it back in. The whole process starts over again. I would appreciate your help. Thanks.