Hello all, My cable service provider says that the digital box that I will be gettting may or may not support HDMI connections. He said that the component connection (which they supply cables for) is sufficient to receive High Defintion picture. He said that they don't guarantee the HDMI connection and that it's pushed on consumers by retailers to sell $100 HDMI cables. Is this correct? What use is HDMI then? Any info appreciated.