My 5 year old RCA TV worked with DVD player. Then it stopped playing. It still received electricity, would open close, and give meassage, "Load" "root" etc,. but there was no picture, no sound. I tried using several different channel. It responded to none. After talking to someone I thought knew what he was talking about I decided My DVD was not working. I bought a new one and it behaves exactly the same way as the first one. Any suggestions?