We’re just getting started. Lots more work to do. About programming the inputs as labels. You can put them where you want them. If you will be using them all the time, the label (rectangular) button is probably the best place to put them, because you can make the label read exactly what it is doing. If you don’t have enough room, you can program them to the square buttons, but then your choices are limited for description purposes.

We will have to let cb1 help with the ones that did not work. Is S Vid a separate distinct input, or is it another one of the video inputs just called something else?
In another of cb1’s posts, he said to press Device and then press the button you want, but in this one he said press Input. Try pressing device (it may be the same thing) and see what happens. The Power on/ff probably worked because you just press power for on and stop for off, with no intermediate button required. The Mitsubishi being on/off makes no difference, because you are programming the remotes, not the TV.

I saw in one of cb1’s posts about the Mits discrete codes where he said to press everything but the last button press with the Mits remote pointing away from the AV3000 or with your hand over the Mits remote, and then pushing the last button with the Mits remote facing the AV3000. Just a thought until cb1 gets back. It shouldn’t matter that input isn’t a flat button. Even though it is a rocker switch it still is two different buttons for command purposes.

Looks like you may be getting ready to go into discrete codes on the OFA/RS remote. As I said, for a minimal investment you will broaden the use of your AV3000.