As far as I know, you won't be able to learn those commands to the Harmony, because even the Roomba remote won't return him to the base. The "spot" and "clean" buttons they are referring to are the ones on the Roomba himself, not the ones on the remote. Try sending him home from the Roomba remote, by pressing "spot" and "clean" together, we did and it doesn't do a thing. Pressing the buttons on the Romba does it though. Apparently the remote can't be used within 8 feet (or something like that) of the base because the IR signals from the remote interfere with the IR signals of the base.
In theory, you shouldn't need to send him back to the base, because he should do when he detects he's done cleaning a room, or when his battery is low. Check out the Roomba FAQ (especially the Home Base section) at [Link: irobot.com]This message was edited by ceruleanblue on 12/29/04 22:10 ET.