How does that code differ from the standard VCR/0618 code?

I'm not aware of UEI having created any codes with the TiVo unit code built in, so the only way (thatI know of) to control multiple TiVos in the same location is to program the remote using JP1.

What remote are you using anyway, I thought the "1900" in your first post was a remote.

Rob
http://www.hifi-remote.com