My installer actually plugged in the S-video, the component cables, AND my HDMI cable, unbeknownst to me. For nearly a week I was watching the S-cable input thinking it was awesome.
Imagine my pleasant surprise when I figured out how he had it wired, and the improvement when I removed the S-cable and activated the HDMI input. I have split screen capabilities and was able to put them side-by-side. Now, don't get me wrong, S with HDTV is really really nice, but I'd say with HDMI is 50% better (which is to say it's now unbelievable).
I got the upgrade the evening after installation, so I never have had any of the resetting issues that were previously present.