used for controlling two TiVos connected to the same TV or in close proximity of each other.
If you only have one TiVo, or only one, or fewer, in any given room, and the remote works it no matter to which side you slide the switch, then you don't need to concern yourself about it.This info is probably buried somewhere in the forum but a couple of searches didn't turn it up. I acquired a used Series 3 HD unit that came with the larger peanut remote which has a 1-2 switch. It seems to make no difference which position the switch is in for controlling my Tivo so what is this switch for?