This is taken from the feature, Tales From A Cold Field, on the transmission gallery website.
Talking about Robinson Crusoe the Sutton Coldfield transmitter was fitted with a telecine machine and various reels of film, mainly trade test stuff but also a copy of Robinson Crusoe in the event the programme feed from London went down. Alas the GPO were supposedly pretty hot on getting it fixed and as the rules were that when it was fixed they had to return to regular broadcasting Robinson Crusoe never got played in full.
Talking of TV transmitters, back in the day during startup they'd announce/show the transmitters and frequency that broadcaster used, of course in 405 line days that'd be only a very small list but with UHF/625 line TV there ended up being too many relays in most areas to be able to list them all, especially near the end of such broadcasts.
"This is Westward Television transmitting from the Caradon Hill, Stockland Hill, Huntshaw Cross and associated transmitters of the Independent Broadcasting Authority"