Tv not turning on. when we try to turn on the tv it does not turn on the button will blink and it

Question

when we try to turn on the tv it does not turn on the button will blink and it will click but not come on when it did come on today there was no sound. we turned it back off and it took forever to come back on then it came on the way it was supposed to. Pleasel help us find the solution to our problem