[DTV]

When was it Breakfast went seven days a week?    They also had "Weekend 24" on BBC2 on Saturdays year round prior to that (think it was an hour at 8am).    IIRC before the Salford move the weekend breakfast shows came from the News Channel desk rather than Breakfast sofa anyway, but were branded as Breakfast.

Breakfast has been seven days a week since it launched in 2000, though weekends were only on BBC Two initially (and not simulcast in full during the early years). This was often listed under the Weekend 24 brand, which was a carry-over from the flags era, but was branded on screen as Breakfast. Once the Saturday breakfast slot was extended to the full four hours, it was three hours of Breakfast and one hour of BBC News 24 (which remained listed as Weekend 24). Sundays moved to BBC One after 9/11, with Saturdays not moving until the start of 2006 (though it had also been on One during summer 2004).

You're right that it's only since the move to Salford that it has come from one studio seven days a week, previously weekends and bank holidays came from the main News 24/News channel studio (so as a) not to have to staff TC7 on a Saturday and b) because TC7 was set-up for the Sunday politicals on Sunday mornings, including rehearsing for Frost/Marr).