:-(
A former member
A while there was a thread about when each area started ENG: https://tvforum.uk/thenewsroom/electronic-newsgathering-39400/

The list was never completed. Maybe we could get it completed this time?

* Channel Started in 1977
* Grampian started in 1977 ( actually it had to come about before January 1978 as this is when ENG become fully operational.
* Tyne tees started on 10 May 1980.
* Central Television East 1st January 1982
* Scottish: October 1984, ( not fully used until 1986)
* TVAM - 1st February 1983.
* HTV: 1985
* TSW: 1985
* Granada started on 14 April 1986
* LWT Jan 1988.

Unknow: Anglia, Border, Thames, Yorkshire and UTV?