There was a certain amount of 'televisual licence'!
I saw a GV of Southern's studio centre, but apart from the ATV 'eye' logo, there wasn't much else.
Granada was given due prominence.
Not enough was made of the modest network programmes made within he regions. Gardening, cooking, etc.... which were simply dropped.
It was nice to hear the old - original- "Nationwide" sig tune again.
I was on the sound crew in Lime Grove when the pilot for Nationwide was tested. This was when the 'sub-regions' opted out of their parent station (Plymouth out of Bristol's output, Norwich out of Birmingham's output etc). I had to tighten the gap in the tail of the opening sig so tightly that the sub regions could
only just opt out!
Later in my career, now in a region... the TM of the day uttering the imortal words "Nothing for Nationwide tonight" meant we got home in time for a late evening meal!

Ah those were the days....