Everything has been forced up to Manchester (now badged as Salford) and Glasgow rather than Birmingham or London
No, everything hasn't been forced out of London. The vast majority of broadcasting still comes from London.
(and it's not just 'badged' Salford, it is actually in Salford)
Growing up in the 60s/70s/80s we became fascinated by media studies in the true sense of watching what went on behind the scenes rather than in front of the camera and what broadcasting really meant.
Problem is that broadcasting as we know it is on the way out, that's not the fault of so-called 'trendy media luvvies', it's because of progress.
I was fascinated by what happens behind the scenes when I was a kid, and I've made a good career in the industry. But I wouldn't be as fascinated these days because I can do what the broadcasters do on my laptop and phone
Fortunately there are so many great resources out there, such as Transdiffusion, to enable us to hold on to the past for our future. Many of the iconic shows are still talked about today from nearly 50 years ago - how many others will stand the test of time. Too much is reliant on soaps and 'reality' shows for ITV to survive - it must also look to its past to survive for its future.
Looking to the past and reminiscing about how things used to be is all very well, but that doesn't mean it provides a model for the future. I'm sure it would be lovely for ITV to have the sort of programming that it did in the 70's and 80's... but times change and there's YouTube and Amazon and Netflix etc