Yes 480i did work previously. see post at 12:19

I will first bypass the 1070 completely to verify the source is working properly. Thank you for the time saving idea.

Here are my goals:

1. Connect a 480p/480i source with component video and optical audio.

2. Connect an OTA tuner with DVI video and coaxial audio.

Should I be using the Component DVD input at all if I am not using the 5.1 audio inputs? Thus saving the real estate for a future OPPO.

If not, taking into consideration the various "hard-wired" associations of the DVD inputs, which inputs should I use to accomplish the two goals above?

What are the "hard-wired" associations? Are there any others besides the DVI 1 to DVD inputs, and the DVI 2 to Video 2 inputs? Is Video 1 tied to anything?

Thank you for your responses so far I do appreciate the help. Dealing with these puzzles is half the fun don't you agree?