[lookoutwales]

My really vague memory (and no doubt someone will remember better!) is that play out for both HTVs, and continuity for HTV West was done by Meridian under United, and then when Carlton took over it was moved to Central for a period, and they needed the idents to be the same length for those reasons, hence why the hybrid idents existed at all. Could be wrong on that one, it is 23 years ago!

Wales playout was handled at Culverhouse Cross until some point after the ITV1 rebrand - and West TX was done from Meridian after being transferred from Cardiff.

AFAIK, Central only handled local playout for their own region until their TX operation closed in 2004.