my brother recently installed a new video in my dads shop as the old video was dying. anyway, the monitor gives the output of "Video" and "audio" by connecting phono leads to it. we have a lead going from that which goes into the video via scart, (i.e. similar to this, but only 2 phono leads) now, using the old video, we had a RF lead going into another tv in a differnet room which would show the picture from the cctv monitor. what i cant understand is how it was configured before in order to enable this ? the only input to the video is the 2 phono to scart lead, so there is no RF signal which is inputted, hence how could we get a signal into the tv in the other room?