With regards to Saturday Night Takeaway, I have heard it will be produced from Television Centre, the original home of the BBC - that will look strange if they use TC1, given the show uses the outside of their studio building a lot, as they did with Studio 1 at London Studios.
A precedent for the exterior of TVC featuring prominently in ITV programmes has already been established in GMB and This Morning though, so it won't be all that strange! The latter has certainly done outdoor segments of the programme since moving to TVC, as well as the building featuring in their title sequence. I'm not aware of it featuring in GMB beyond their title sequence though.
And it is of course referred to by the distinctly sans-"BBC" name of
"Television Centre" within such programmes. A&DSNT would of course do likewise, not least of all because that
the facility's de facto name nowadays.
Plus, Auntie Beeb has well and truly established the exterior of NBH as its signature building image in recent history, through the likes of The One Show and the NC countdown.