DISH Network DVR-625 DTV Receiver / 100-Hours Video Recorder "vizio coax cable connection" Questions

Vizio TV by using HDMI cable? The 625 is not a high definition receiver and therefore does not support hdmi. You can use RGB or S-video to provide a higher quality picture than the coax output. If you

Vizio big screen in his room without blowing it up. What all do I need to do to make the proper connections to hook everything up safely with what I described? (Rather long windedly! Sorry.) Do I have