Thanks for the reply! I still have two question I hope you can answer:
1. My (non-HD) TV actually has component inputs but it definitely *cannot* display 480p. So, what happens if I plug it into the WinTV-HD? Will they auto-negotiate down to 480i?
2. I realize that scaling the WinTV-HD's video down and watching it in a VGA window is not "HD", but isn't it going to be better than broadcast NTSC? Does the WinTV-HD s/w allow you to go full-screen (even if the VGA screen is only set for 640x480)?
Obviously, I'm still considering running the WinTV-HD signal through it's windowing s/w (hopefully full-screen), then outputting the 640x480i result via my Nvidia. When I finally buy a real HDTV, I'll use the native HD outputs on the WinTV-HD.
I'm in the middle of the city and have a strong signal from most all stations, but I get a lot of ghosting. For now, all I want to do is clean up my reception. I don't expect HD or even 480p. Also, my Nvidia card does a much better VGA-to-NTSC conversion than the external AverKey I started with.