[Stooky Bill]

eggsontoast has answered this question. Pre 1993 Thames and LWT were the nominated contractors and after this date Carlton replaced Thames in that role. As pointed out LNN provided the technical facilities for the transmission facilities, the actual Transmission Controllers (those who made the decisions relating to the minute by minute running of the ITV network) and who worked within the LNN area, were still individually employed by Carlton and LWT because of their role.

If realised the announcers were employed but Carlton/LWT but not the TCs too. So there was a shift changeover on a Friday evening?

Who employed the TC during GMTVs hours?