Hi there,
let me get into the show:
I have a Sony LCD 42" TV, model KDF - E42A10 and a Pioneer DVD model DV - 696A (it's an upscaling model, which also plays SACD & DVD-A). Upscaling is set to 1080i though. All being plugged into a Denon 3806 AVR.
I have the overlayed OSD info anytime, with volume control as well.
In other hand, there are 2 more DVD's plugged into the AVR - which are not HDMI capables (component only) - and the Denon OSD setup doesn't get overlayed as with the HDMI player. I got the OSD setup whenever I want to, but the TV's image cuts off (screen becomes black, without any sound).
In both cases, no volume control appears on screen and that is due to the TV resolution.
Oh, one more thing: considering that I had some extra cables without use, I've plugged both (component & S-video), from AVR monitors out to TV.
Perhaps that's the catch that allows me to see the overlayed OSD thru HDMI, who knows??
Hope this helps.
Cheers / Avliner.