Last year I was woken up in the middle of the night by my girlfriend, who was terrified by a voice that seems to come from the lounge. I got up, opened the door, and there was a bright white light. My girlfriend was even more terrified since she could only see me and the light shining on me from the lounge. It was the television. It turns out that when we were channel surfing earlier in the evening, we switched to a channel that wasn't broadcasting anything, got distracted, and the television goes into sleep mode after a while when it's on such a channel. At 3am they started broadcasting some video loop, basically of a white background with a little text, and a woman's voice announcing something.
I watched The Ring once and must have left the TV on, because later that night I woke up to a light coming from the living room. I went in and the TV was doing the "white noise / static" thing exactly like in the movie.
I turned it off, unplugged it from the wall and thought, "ok, if that happens again I can officially shit myself."