Toshiba 42 " TV

Question

Hi. While watching tv very often the screen with go black. We still have sound. Sometimes all we have to do is turn the set off and the picture comes back right away. Other times it takes hours for the set to come back on. Do you know what the problem is and if so what we should do to fix it.Is it possible that the tv can not take the constant pausing of programs. We have Bell Expressvu and use the feature often.ThanksCC