[newsjunkie]

No it isn't. It's just the only one other than STV to use it's own branding on networked shows (well, I guess UTV would too, but they never make networked programmes) - other regions use ITV Studios or one of several other labels ITV has launched over the years. Corrie is made by ITV Granada, Emmerdale by ITV Yorkshire, but both have the same ITV Studios endcap. The same would be true of shows made by ITV Central, ITV Anglia, etc.

There is actually a bit of difference.

ITV Studios is very much a separate entity to the ITV regions, which now primarily work on news production only.
While Emmerdale & Calendar might be in the same building, one is very much part of ITV Studios and managed through them, the other is managed through the ITV News Group (it may not be called that anymore). Beyond the canteen (and maybe some IT support) they are pretty much a different company.

Whereas at ITV Cymru Wales the people making these commissions are the same people who are making the 'non-news' programmes for ITV1 in Wales. They all sit in the same office (including news), use the same edit suites, have the same manager who is in Cardifff.