I recently was given an RCA Home-theater-in-a-box for an early Christmas present. The DVD player is essentially the receiver all in one. It sounds good when I am watching a DVD but I cant figure out what I have to do to make it play the sounds coming from normal TV. To temporarily fix this, I just ran a wire from the Headphone jack on my TV to the Audio In jack on the DVD Player. This sounds like total **** compared to the DVD player playing. What do I have to do to make this play my normal TV?