Tunneling tivos?

For various reasons I'm not easily able to deal with, my Tivos are on what are at the moment physically distinct networks and I can't fix that; The speed won't be an issue, but for the life of me I can't figure out how to fix things so I can go back to multiroom viewing. It's getting bothersome. Any of you done this? I'm suspecting I can tunnel one IP in a given range out of one room into the other; In one net there's always a linux box and in the other is my dev lab which always has a linux box and a mac (reliable, there's more always there but i knock them over at will).

Just curious.

You might be able to run a one-to-one NAT on one of those Linux machines. You'd probably have to set it up to be multihomed to both networks.