[gr8fl4porsche]

Tivo HD is multi room as long as you have a dvr hooked up to each tv.

From each dvr you can see the other dvr's and can transfer the recordings to watch them. You have to let it transfer the show, it will not stream from another box.

I have 2 Tivo HD's getting signal from on OTA antenna and connected wirelessly to my computer and each other. I have installed 3rd party freeware that allows my Tivo's to read from a video file on my computer and play just about any format of downloaded shows, movies, etc. that you can find. These videos are streamed and do not require any transferring, so basically my Tivo's play off the hard drives in my system rather than the drives installed in the box.