Did every region basically get a feed from every other region back then?
No, there were not enough contribution circuits to do that. There was only one contribution circuit from Southampton back to London for instance, it was mostly used by Southern/TVS, but would get allocated
to the BBC if they were doing something in the area, notably Saturday afternoon football at Saints or Pompey
All circuits were booked according to ITV or BBC requests, and the BBC did their own local end switching, though it was ITV's config that changed regularly, every 30 mins sometimes if each network programme came from a different company . However no point spending a fortune to rent a circuit for no use, and pointless for Thames to be able to see what Grampian were doing.
Last edited by Markymark on 10 January 2019 7:19pm