BBC News studio sets timeline

Hi all

I'm trying to locate a website I've visited once in the past but can't find anymore.

It featured a timeline of sets used by BBC World, BBC News 24 and the BBC News Channel including saying which studio it was located in, when they swapped over and included photos from on-air looks showing how they changed and were tweaked over time.

I recall it being really descriptive and explained the changes through very well but I can;t find it despite several days trying. Anyone recognise it?

Many thanks in advance.