If you have a Hi def TV and have componet cables hooked up your missing out on picture and sound quality. I have the same model and brand HDMI cables as those used by DirecTV in their HR-15 HD DVRs. These cables(nor any others) will not work with a samsung TV when connected to a HR-20 high def dvr. Any other reciever/vcr/dvd hook up is compatible. The cables are very reasonably priced at $30 plus shipping with comprable cables going for anywhere from 80 bucks on up to 170. Any other home theather wiring/small parts or just need advice feel free to shoot me a pm.