Yes, the DVR1/DVR2 switch doesn't mean address 1/address 2 switch, both sides of the switch comes programmed for address zero, you have to program them yourself.
Most likely you didn't actually change the IR code for one Tivo and it's still set to "0" so it will respond to any code.Goober96 said:Why does the one set to 1 work no matter where the switch is set?