Hi Dave,

It is unlikely going to be that easy. Usually there are also some
resonant circuits, or at least one, and these frequencies are pretty far
apart.

Here is what we did: I bought a modulator at Radio Shack for about $40.
It's output frequency can be programmed digitally via push button to any
channel in the UHF range. Then video and audio is fed from the VCR into
that modulator. Its RF signal is fed into the house distribution and now
we can watch videos at any TV in the house.

Regards, Joerg

http://www.analogconsultants.com