Samsung HLR5667W 56" Rear Projection HDTV "mute working dish network remote" Questions

...working perfect, but no sound at all...What could be the problem? First of all, there may not be anything wrong with your TV set. May I tell you that if you have Directv or Dish Network you may have ...

...working , But some stupid guy told me I needed a cable called HDMI, OK So I have it But I have Dish Network, their is no place to hook up the other end of the HDMI cable. I asume I need to call dish ...