That was/is an option my first '95 Avant also had.
One of the benefits of a B&O telly is that you can watch TV while you can watch the Sat, DVD etc in the linkroom. That means if you're watching TV, DVD etc, the signal isn't automatically put on the RF cable.
So, switching on the modulator isn't enough.
Then there is the problem that if you switch off the Avant, the linkroom still needs the DVD signal over the RF cable.
I think that Eric-nl should invest some money in a few metres of ML cable and a Videolink module.
It gives you some extra interesting options. Watching dvd, dtv, sat, listening to the radio, cd etc (if available), timer options. Just my opnion though.
Beobuddy.