Bruno is correct, the pictures you are seeing of teh BeoCom 6000 are the Mark I version which did not have the headset option. The newer Mark II do have the headset socket in the top of the phone.

David, You can add a Sky HD box to your non B&O TV in your second lounge, but you could not control it with the Beo4. You could add the Sky HD box to the AVANT using the STB (Set Top Box Controller) which would allow you to control it using the Beo4 in the second lounge, HOWEVER whilst the picture would be very good on both TV's it would not

Your non B&O TV stays on the same channel all the time which is tuned to the link frequency. When you change channel on the Beo4 the AVANT changes channel and sends the new channel over the RF cable which remains at the same link frequency. So if you tune the link frequency say to the first channel on the non B&O TV it you will always use it

To ensure good impedance matching without an amplifier you could use a splitter like the one below

You could just use a splitter, but it would be better to use a multi-output aerial distribution amplifier because to have the best picture on all TV's the impedance matching of each cable is important.

On page 56 of the reference manual the RF output is marked "LINK" so it is the socket above where your aerial is plugged in

Well, all you need to do now is run the 75 ohm coax aerial cable from the RF output socket on the AVANT to the aerial input socket on the new non B&O TV, then tune in the link frequency on the first channel on your non B&O TV and you are done. You may wish to run a temporary aerial cable so you can assure yourself that all is working before

David, That means you will be running software version 2 or above and if you press DTV or SAT on your Beo4 you should get the AVANT sound via the BeoLab 3500 and see SAT or DTV on teh BeoLab 3500 display, is this correct ?

Using option 1 is the one I would have gone for and yes you can use the Beo4 to control the TV except for two functions they are switching the non B&O tv on and off, and even that could be done at extra cost, but lets keep it simple. First some further questions, how old is your Beolab 3500 ?

Well, you have an interesting problem here. I can confirm that the type number is correct. What are your BeoLab 3 powerlink cables connected too ? Are your Beolab 3's connected to the same mains power source as the video/audio device driving the powerlink ?