Educate me further on component input bandwidth. I've read that HDTV requires 30 MHz (1080i). I've also seen recommendations that advise at least 50 MHz for HDTV. Is this overkill or a safety buffer to ensure no loss of video quality? I ask because the two receivers under consideration for purchase (Yamaha 2400, Denon 3805) differ by a substantial amount on the spec sheet. Yamaha quotes 60 MHz, Denon 100 MHz. Should this be concern? I plan on running component from cable HD box through the receiver and to the TV (Sammy DLP). If only the DVI port on the cable box was active this would be a non-issue!