I am going to order a Panasonic TH-50PHD7UY 50" Plasma display. The unit comes without speakers, and I will use it strictly as a monitor. It comes with BNC-style component inputs but I can order additional inputs: RCA Component ($105), DVI-D w/HDCP ($150), HDMI ($250).
I plan on hooking up a Comcast HD feed and an HD-upconverting DVD player to the display. The DVD player I am looking at (Yamaha DVD-C950) only does the upconversion via HDMI. I know you can get HDMI/DVI cables at a slight premium to HDMI/HDMI cables. Since I do not need audio to the display, it seems more cost effective to get the DVI-D input and the HDMI/DVI cables, rather than a straight HDMI connection. My first question is: holding cost aside, will the picture quality be the same with a HDMI/DVI connection, or would the picture be better with a straight HDMI connection?
Second, I am very unfamiliar with BNC-style connections, and I am not sure what I should do with the HD cable feed. Will the Comcast STB output RCA component, BNC component, HDMI and/or DVI-D? Will the picture be better with component outputs, or should I replace the BNC component input on the display with another DVI-D input? If the STB outputs RCA component but not BNC, would it be cheaper to buy BNC adapters, or replace the BNC component input with an RCA component input?
Thanks in advance for the help