So, I guess the reverse would also be true, if the incoming feed was lost, then presumably the outgoing would be lost as well?
In which case what would happen?
If a station couldn't air a programme to the network due to a down 'out' line, would each company have to fill locally, or would someone like Thames provide a network filler?
Or, if there was plenty of time - get that VT
in a fast car to a neighbour region (Thames to Southern / Granada to Yorkshire etc) and get the programme to air that way?
"Occasionally it gives us something good, but for the most part, it is pathetic and puerile". Lord Taylor, House Of Commons, 1959.