[DTV]

Out of the programmes you’ve cited there, for example, the geographical spread effectively creates a need for extra studio space and staffing. Breakfast, originally, would likely have been planned to come from the original Studio B in NBH. The soft side of the set, where Impact was presented from, would have looked great set up for Breakfast. Studio B was the spiritual successor to TC7 which housed both Newsnight and Breakfast at TV Centre. Even now, in the new Studio B, the set could probably be altered to host a sofa-based Breakfast in a similar way to the manner in which they alter the set for Laura K’s show.

Yeah, originally there would have been six proper TV studios - four in the basement, as now (though in a different arrangement), with the large one taking over from TC7 (which at the time would have been Breakfast, Working Lunch, Newsround, Newsnight and Breakfast with Frost) and the others presumably host to BBC One news, BBC Three news and possibly BBC London (though am not sure if they were in the original plans). BBC World wouldn't originally have part moved into Studio B, but instead come entirely from one of two newsroom studios opposite each other on what is now the mezzanine floor.