Whoops sorry my bad - my mistake - I meant 1966 was when BBC
Two Northern Ireland
launched on Saturday 11th June 1966. I apologise for my previous error stating 1967.
To be very pedantic BBC 2 (and it was
back then) was the national UK version, national/regional versions of BBC 2 didn't appear until the 80s ?
Presumably running national operations in dual standards (405 for BBC One, 625 for BBC Two) was a complication best avoided? (Plus BBC Two was still very new - and I doubt there was any great push to regionalise it)
I think there was also a distribution problem, in North Wales Moel-y-Parc and Llandonna sourced their BBC 2 feeds from Winter Hill for some years into the 70s, and therefore had no feed available from Cardiff. As it was the BBC 1/625 feed from Cardiff was tortious enough, so it was not duplicated for BBC 2 until there was an imperative for BBC 2 Wales to be created