About a week ago my tv started turning on by itself so I unplugged it at nigtht when I plugged it back in the buttons were messed up everytime I press the power button whether on the tv or the remote it changes the input so i can't change the volume or anything I currently have to get it to video1 and watch through the vcr on low volume and when i'm done I have to unplug it to shut it off any suggestions?