How can I transmit TV programmes from my BT Vision box to other TVs in the home without another BT Box?

You will have to have a television outlet connection on your wall the place that you would be able to plug a RF cable in (Or in some occasions, the cable comes immediately in from the outdoor aerial) in the end, Plug this cable directly into your BT vision box, then join the television and BT imaginative and prescient field via hdmi.

You can buy something called a wireless TV sender. Some models differ but the one I have plugs directly into the SCART port on each TV, because of course SCART both supports bi-directional signals.

So you plug the 'transmitter' unit into the SCART port on the TV you want to send from, and the 'receiver' unit into the SCART port on the TV you want to receive from. And whatever you see on the transmitter's TV will appear on the receiver's TV.

http://www.outdoorgb.com/p/wireless_scart_av_sende...

It looks like the above link.

Just of course make sure both the units are in range of eachother to avoid interference or no signal at all.

You can do using the above scart method but the TV's would only show the channel that was showing on the main Vision box, you couldn't change channels on the other TV's.

There's some info here :

http://bt.custhelp.com/app/answers/detail/a_id/404...

But it seems like you still have to pay.