It would be a mistake to imagine that current broadcast workflows (British or otherwise) are in some ways inviolable, or that there won’t be massive changes ahead.
In the UK, broadcasters could be seen as feather-bedded near-monopolies and have perhaps been slow to adapt to technological advances.
As FCP eats into the BBC culture over the next few years, expect much broader programme-making culture-change: maybe a gradual catch-up with editing models which see fast, fluent tools moving closer to the hands of the programme makers, and away from the technical guardian / button-pusher / online finisher role.
Independent film-making has shown how there are many more approaches than the traditional “offline / online” model, which itself harks back to analogue systems needing engineers to edit (finish really), when offlining was sometimes no more than a VHS cassette and a notepad. Oh the joy when “paper edits” became 2-machine offlines, and then even 2-machine offlines on Avids … but it was 15 years ago.
With luck, we might all have great new tools to make better programmes with … whether from Adobe, Apple, Avid, Autodesk or whoever ….