Hmm, after closer more careful observation, it's actually sending "TV channel up" followed by "TV/Video" every time to switch to video1, and "TV channel up" to change to tuner mode. It's like it is implementing pseudo-discrete operation even though I told the wizard to use cycling.

I suppose this way is more reliable, less likely to get out of sync, but is there any way to override this? One bad thing about this is that it's changing the TV channel every time, so when switching back to TV you have to change back to the channel you were watching before.