Jason,

Re-tested. Doesn't seem to matter if a source is connected or not for the Discrete codes that work.

S-Video 2 does NOT work. S-Video 3 works.

Don't know what else to try. The only codes I need are the picture size/aspects, and the Antenna input. I don't have that many sources, so the discrete codes that work are meeting 70% of my needs.

Any ideas?